null set
fuzzy set
connection
memberless
disjoint set
setless
non-empty
setlessness
singleton
absolute complement
join
union
hyperconnection
disjoint
sum
void
empty set
nonempty
blank
partition
null
topology
algebra
trivial topology
place
space
threescore
π-system
blank space
toom
odd
simple group
group
mathematical group
null sign
unclassified
relative complement
limbo set
categorylessness
zero
null space
closure
patternlessly
cofinite topology
transversal
atom
unit
ideal
empty function
almost
axiom of regularity
coatom
inane
proper subset
basic block
clear out
unenumerated
σ-algebra
Hintikka set
partlessness
boundary
well-order
settingless
filter
preclear
vacantly
power set
featurelessly
absent referent
difference
complement
nullary sum
nonsectioned
vacant
subset
symmetric difference
empty
segmentless
stagelessness
discharge
blankness
almost all
patternlessness
positive logic
primitive element
ring
vacuous
zeromodal
nonpooled
divisionlessness
absent
Mother Hubbard
uncompartmented
simple
needlessly
memberless
setless
non-empty
disjoint
void
nonempty
blank
toom
unclassified
zero
unenumerated
settingless
nonsectioned
vacant
segmentless
vacuous
zeromodal
nonpooled
Mother Hubbard
uncompartmented
simple
null
patternlessly
almost
vacantly
featurelessly
needlessly
null set
fuzzy set
connection
disjoint set
setlessness
singleton
absolute complement
join
union
hyperconnection
sum
empty set
partition
null
topology
algebra
trivial topology
place
space
threescore
π-system
blank space
odd
simple group
group
mathematical group
null sign
relative complement
limbo set
categorylessness
null space
closure
cofinite topology
transversal
atom
unit
ideal
empty function
axiom of regularity
coatom
inane
proper subset
basic block
σ-algebra
Hintikka set
partlessness
boundary
well-order
filter
preclear
power set
absent referent
difference
complement
nullary sum
subset
symmetric difference
stagelessness
blankness
patternlessness
positive logic
primitive element
ring
divisionlessness
clear out
empty
discharge
noun
- A set of sets that contains the empty set, all one-element sets for any element that is included in any of the sets, and the union of any group of sets that are elements where the intersections of those sets is non-empty.
- A feeling of understanding and ease of communication between two or more people.
- sexual intercourse
- A kinship relationship between people.
- An individual who is related to oneself, through either family or business.
- A drug dealer.
- The description for a Methodist denomination as a whole, as opposed to its constituent churches, circuits, districts and conferences.
- Coherence; lack of disjointedness
- The point at which two or more things are connected.
- A transfer from one transportation vehicle to another in scheduled transportation service
- An established communications or transportation link.
- The act of connecting.
adj
noun
noun
- a set containing all and only the members of two or more given sets
- an organization of employees formed to bargain with the employer
- the act of pairing a male and female for reproductive purposes
- the state of being joined or united or linked
- the state of being a married couple voluntarily joined for life (or until divorce)
- healing process involving the growing together of the edges of a wound or the growing together of broken bones
- a political unit formed from previously independent people or organizations
- the occurrence of a uniting of separate parts
- a device on a national flag emblematic of the union of two or more sovereignties (typically in the upper inner corner)
- the act of making or becoming a single unit
adj
adj
- Containing nothing; empty; not occupied or filled.
- That does not return a value; a procedure.
- Having no incumbent; unoccupied; said of offices etc.
- Being without; destitute; devoid.
- Containing no immaterial quality; destitute of mind or soul.
- Not producing any effect; ineffectual; vain.
- Of no legal force or effect, incapable of confirmation or ratification.
noun
- An empty place; A location that has nothing useful.
- An empty space; a vacuum.
- A collection of adjacent vacancies inside a crystal lattice.
- A pocket of vapour inside a fluid flow, created by cavitation.
- An extended region of space containing no galaxies.
- An empty space between floors or walls, including false separations and planned gaps between a building and its facade.
- A black cat.
verb
adj
- Empty; void; without result; fruitless.
- Lacking characteristics which give variety; uniform.
- Free from writing, printing, or marks; having an empty space to be filled in
- Utterly confounded or discomfited.
- Absolute; downright; sheer.
- Devoid of thoughts, memory, or inspiration.
- Of ammunition: having propellant but no bullets; unbulleted.
- Without expression, usually due to incomprehension.
verb
- To make void; to erase.
- To ignore (a person) deliberately.
- To prevent from scoring; for example, in a sporting event.
- To become blank.
- To be temporarily unable to remember.
- To render ineffective by blanketing with turbulent airflow, such as from aircraft wake or reverse thrust.
noun
- Infertile semen.
- A vacant space, place, or period; a void [since the 17th century].
- A dash written in place of an omitted letter or word
- Blank verse .
- Provisional words printed in italics (instead of blank spaces) in a bill before Parliament, being matters of practical detail, of which the final form will be settled in Committee .
- A domino without points on one or both of its divisions.
- An empty form without substance; anything insignificant; nothing at all .
- A lot by which nothing is gained; a ticket in a lottery on which no prize is indicated [since the 16th century].
- A space to be filled in on a form or template.
- A document, paper, or form with spaces left blank to be filled up at the pleasure of the person to whom it is given (e.g. a blank charter, ballot, form, contract, etc.), or as the event may determine; a blank form .
- The white spot in the centre of a target; hence (figuratively) the object to which anything is directed or aimed, the range of such aim .
- An unprinted leaf of a book [20th century].
- The ¹ / ₂₃₀₄₀₀ of a grain [17th century].
- Any article of glass on which subsequent processing is required [since the 19th century].
- An empty space in one's memory; a forgotten item or memory [since the 18th century].
- The shaved wax ready for placing on a recording machine for making wax records with a stylus [20th century].
- The space character; the character resulting from pressing the space-bar on a keyboard.
- A sample for a control experiment that does not contain any of the analyte of interest, in order to deliberately produce a non-detection to verify that a detection is distinguishable from it.
noun
- A collection of non-empty, disjoint subsets of a set whose union is the set itself (i.e. all elements of the set are contained in exactly one of the subsets).
- A vertical structure that divides a room.
- An approach to division in which one asks what the size of each part is, rather than (as in quotition) how many parts there are.
- A musical score.
- An action which divides a thing into parts, or separates one thing from another.
- A part of something that has been divided.
- A part divided off by walls; an apartment; a compartment.
- That which divides or separates; that by which different things, or distinct parts of the same thing, are separated; boundary; dividing line or space.
- The severance of common or undivided interests, particularly in real estate. It may be effected by consent of parties, or by compulsion of law.
- The division of a territory into two or more autonomous ones.
- A division of a database or one of its constituting elements such as tables into separate independent parts.
- A section of a hard disk separately formatted.
verb
noun
- A non-existent or empty value or set of values.
- The null character; the ASCII or Unicode character (␀), represented by a zero value, which indicates no character and is sometimes used as a string terminator.
- Zero quantity of expressions; nothing.
- One of the beads in nulled work.
- Something that has no force or meaning.
- The attribute of an entity that has no valid value.
- The null hypothesis.
adj
- Of the null set.
- Insignificant.
- Having no validity; "null and void".
- Causing a complete loss of gene function; amorphic.
- Absent or non-existent.
- Of or comprising a value of precisely zero.
- Neutral.
verb
noun
- Any collection τ of subsets of a given set X that contains both the empty set and X, and which is closed under finitary intersections and arbitrary unions.
- The properties of a particular technological embodiment that are not affected by differences in the physical layout or form of its application.
- The topographical study of geographic locations or given places in relation to their history.
- The arrangement of nodes in a communications network.
- The branch of mathematics dealing with those properties of a geometrical object (of arbitrary dimensionality) that are unchanged by continuous deformations (such as stretching, bending, etc., without tearing or gluing).
- The anatomical structure of part of the body.
noun
- A collection of subsets of a given set, such that this collection contains the empty set, and the collection is closed under unions and complements (and thereby also under intersections and differences).
- A system or process, that is like algebra by substituting one thing for another, or in using signs, symbols, etc., to represent concepts or ideas.
- An algebraic structure consisting of a module over a commutative ring (or a vector space over a field) along with an additional binary operation that is bilinear over module (or vector) addition and scalar multiplication.
- A universal algebra.
- One of several other types of mathematical structure.
- The study of algebraic structures.
- The surgical treatment of a dislocated or fractured bone. Also (countable): a dislocation or fracture.
- A system for computation using letters or other symbols to represent numbers, with rules for manipulating these symbols.
noun
- a blank area
- a point located with respect to surface features of some region
- any area set aside for a particular purpose
- an abstract mental location
- a general vicinity
- the post or function properly or customarily occupied or served by another
- a particular situation
- where you live at a particular time
- a job in an organization
- the particular portion of space occupied by something
- proper or designated social situation
- a space reserved for sitting (as in a theater or on a train or airplane)
- the passage that is being read
- proper or appropriate position or location
- a public square with room for pedestrians
- an item on a list or in a sequence
verb
- put into a certain place or abstract location
- place somebody in a particular situation or location
- assign a rank or rating to
- assign a location to
- to arrange for
- take a place in a competition; often followed by an ordinal
- intend (something) to move towards a certain goal
- recognize as being; establish the identity of someone or something
- assign to (a job or a home)
- locate
- estimate
- identify the location or place of
- make an investment
- assign to a station
- finish second or better in a horse or dog race
- sing a note with the correct pitch
noun
- a blank area
- the unlimited expanse in which everything is located
- an empty area (usually bounded in some way between things)
- an area reserved for some particular purpose
- any location outside the Earth's atmosphere
- a blank character used to separate successive words in writing or printing
- the interval between two times
- one of the areas between or below or above the lines of a musical staff
- (printing) a block of type without a raised letter; used for spacing between words or sentences
verb
noun
noun
adj
- About, approximately; somewhat more than (an approximated round number).
- Scattered; occasional, infrequent; not forming part of a set or pattern.
- Used or employed for odd jobs.
- Left over or remaining (as a small amount) after counting, payment, etc.
- Numbered with an odd number.
- Without a corresponding mate in a pair or set; unmatched; (of a pair or set) mismatched.
- Not regular or planned.
- Differing from what is usual, ordinary or expected.
- Left over, remaining after the rest have been paired or grouped.
- Peculiar, singular and strange in looks or character; eccentric, bizarre.
- On the left.
- Out of the way, secluded.
- Numerically indivisible by two.
adj
noun
- a quantity of no importance; thing (object:), singular, negative pronoun; pronoun, thing, singular; quantifier: negative existential
- a mathematical element that when added to another number yields the same number
- the point on a scale from which positive or negative numerical quantities can be measured
- the sight setting that will cause a projectile to hit the center of the target with no wind blowing
adj
- indicating the absence of any or all units under consideration
- having no measurable or otherwise determinable value
- indicating an initial point or origin
verb
noun
- The smallest closed set which contains the given set.
- An event or occurrence that signifies an ending.
- A device to facilitate temporary and repeatable opening and closing.
- An abstraction that represents a function within an environment, a context consisting of the variables that are both bound at a particular time during the execution of the program and that are within the function's scope.
- That which closes or shuts; that by which separate parts are fastened or closed.
- The smallest set that both includes a given subset and possesses some given property.
- A method of ending a parliamentary debate and securing an immediate vote upon a measure before a legislative body.
- The process whereby the reader of a comic book infers the sequence of events by looking at the picture panels.
- The phenomenon by which a group maintains its resources by the exclusion of others from their group based on varied criteria. ᵂᵖ
- The act of shutting or closing something permanently or temporarily.
- The act of shutting; a closing.
- A feeling of completeness; the experience of an emotional conclusion, usually to a difficult period.
noun
- A non-zero member of a partially ordered set that has only zero below it (assuming that the poset has a least element, its "zero").
- The smallest possible amount of matter which still retains its identity as a chemical element, now known to consist of a nucleus surrounded by electrons.
- In logical atomism, a fundamental fact that cannot be further broken down.
- The smallest medieval unit of time, equal to fifteen ninety-fourths of a second.
- An age group division in hockey for nine- to eleven-year-olds.
- An element of a set that is not itself a set; an urelement.
- A mote of dust in a sunbeam.
- A hypothetical particle posited by Greek philosophers as an ultimate and indivisible component of matter.
- The smallest, indivisible constituent part or unit of something.
- A very small amount; a whit.
- An individual number or symbol, as opposed to a list; a scalar value.
noun
- a single undivided whole
- any division of quantity accepted as a standard of measurement or exchange
- an individual or group or structure or other entity regarded as a structural or functional constituent of a whole
- an organization regarded as part of a larger social group
- a single undivided natural thing occurring in the composition of something else
- an assemblage of parts that is regarded as a single entity
noun
- A non-empty lower set (of a partially ordered set) which is closed under binary suprema (a.k.a. joins).
- A subsemigroup with the property that if any semigroup element outside of it is added to any one of its members, the result must lie outside of it.
- A subring closed under multiplication by its containing ring.
- A collection of sets, considered small or negligible, such that every subset of each member and the union of any two members are also members of the collection.
- A perfect standard of beauty, intellect etc., or a standard of excellence to aim at.
- A Lie subalgebra (subspace that is closed under the Lie bracket) 𝖍 of a given Lie algebra 𝖌 such that the Lie bracket [𝖌,𝖍] is a subset of 𝖍.
adj
- Not actually present, but considered as present when limits at infinity are included.
- Optimal; being the best possibility.
- Existing only in the mind; conceptual, imaginary.
- Pertaining to ideas, or to a given idea.
- Perfect, flawless, having no defects.
- Teaching or relating to the doctrine of idealism.
noun
noun
- (of a set) The set of points in the closure of a set S, not belonging to the interior of that set.
- An edge or line marking an edge of the playing field.
- The bounds, confines, or limits between immaterial things (such as one’s comfort zone, privacy, or professional sphere and the realm beyond).
- The dividing line or location between two areas.
- An event whereby the ball is struck and either touches or passes over a boundary (with or without bouncing), usually resulting in an award of 4 (four) or 6 (six) runs respectively for the batting team.
noun
- A non-empty upper set (of a partially ordered set) which is closed under binary infima (a.k.a. meets).
- self-restraint in speech.
- A device which separates a suspended, dissolved, or particulate matter from a fluid, solution, or other substance; any device that separates one substance from another.
- Any item, mechanism, device or procedure that acts to separate or isolate.
- A translucent object placed in the light path of a camera to remove certain wavelengths (colors), or a computer program that simulates such an effect.
- Electronics or software that separates unwanted signals (for example noise) from wanted signals or that attenuates selected frequencies.
verb
noun
- The set of elements that are in one set but not another ( scriptstyle A◌̅B).
- The result of a subtraction; sometimes the absolute value of this result.
- A disagreement or argument.
- An addition to a coat of arms to distinguish two people's bearings which would otherwise be the same. See augmentation and cadency.
- A characteristic of something that makes it different from something else.
- The quality of being different.
- The quality or attribute which is added to those of the genus to constitute a species; a differentia.
- Significant change in or effect on a situation or state.
- A Boolean operation which is true when the two input variables are different but is otherwise false; the XOR operation ( scriptstyle A◌̅B+◌̅AB).
noun
- Given two sets, the set containing one set's elements that are not members of the other set (whether a relative complement or an absolute complement).
- Fullness (of the moon).
- A nucleotide sequence in which each base is replaced by the complementary base of the given sequence: adenine (A) by thymine (T) or uracil (U), cytosine (C) by guanine (G), and vice versa.
- An angle which, together with a given angle, makes a right angle.
- Something which completes, something which combines with something else to make up a complete whole; loosely, something perceived to be a harmonious or desirable partner or addition.
- A word or group of words that completes a grammatical construction in the predicate and that describes or is identified with the subject or object.
- A voltage level with the opposite logical sense to the given one.
- A bit with the opposite value to the given one; the logical complement of a number.
- One of several blood proteins that work with antibodies during an immune response.
- Obsolete spelling or misspelling of compliment.
- The radix complement of a number; the two's complement of a binary number.
- The whole working force of a vessel.
- An interval which, together with the given interval, makes an octave.
- The diminished radix complement of a number; the nines' complement of a decimal number; the ones' complement of a binary number.
- The numeric complement of a number.
- Synonym of alexin
- An expression related to some other expression such that it is true under the same conditions that make other false, and vice versa.
- The color which, when mixed with the given color, gives black (for mixing pigments) or white (for mixing light).
- The totality, the full amount or number which completes something.
verb
noun
verb
- become empty or void of its content
- complete or carry out
- pour forth or release
- free from obligations or duties
- remove the charge from
- go off or discharge
- pronounce not guilty of criminal charges
- eliminate (a substance)
- remove (cargo, people, etc.) from and leave
- cause to go off
- release from military service
noun
- the sudden giving off of energy
- the act of venting
- a substance that is emitted or released
- any of several bodily processes by which substances go out of the body
- electrical conduction through a gas in an applied electric field
- the pouring forth of a fluid
- the termination of someone's employment (leaving them free to depart)
- a formal written statement of relinquishment
- the act of discharging a gun
noun
- An element of a free generating set of a given free group.
- An element x ∈ C such that μ(x) = x ⊗ g + g ⊗ x, where μ is the comultiplication and g is an element that maps to the multiplicative identity 1 of the base field under the counit (in particular, if C is a bialgebra, g = 1).
- An element that is not a positive integer multiple of another element of the lattice.
- An element that generates a simple extension.
- Given a modulus n, a number g such that every number coprime to n is congruent (modulo n) to some power of g; equivalently, a generator of the multiplicative field of integers modulo n.
- An element that generates the multiplicative group of a given Galois field (finite field).
noun
- A family of sets that is closed under finite unions and differences.
- A circumscribing object, (roughly) circular and hollow, looking like an annual ring, earring, finger ring etc.
- An exclusive group of people, usually involving some unethical or illegal practices.
- An old English measure of corn equal to the coomb or half a quarter.
- A large circular prehistoric stone construction such as Stonehenge.
- A group of atoms linked by bonds to form a closed chain in a molecule.
- A piece of food in the shape of a ring.
- Any loud sound; the sound of numerous voices; a sound continued, repeated, or reverberated.
- A circular group of people or objects.
- A sound or appearance that is characteristic of something.
- A flexible band partly or wholly encircling the spore cases of ferns.
- A bird band, a round piece of metal put around a bird's leg used for identification and studies of migration.
- A planar geometrical figure included between two concentric circles.
- A chime, or set of bells harmonically tuned.
- The resonant sound of a bell, or a sound resembling it.
- A formation of various pieces of material orbiting around a planet or young star.
- The open space in front of a racecourse stand, used for betting purposes.
- The twenty-fifth Lenormand card.
- A pleasant or correct sound.
- An algebraic structure which consists of a set with two binary operations: an additive operation and a multiplicative operation, such that the set is an abelian group under the additive operation, a monoid under the multiplicative operation, and such that the multiplicative operation is distributive with respect to the additive operation.
- A diacritical mark in the shape of a hollow circle placed above or under the letter; a kroužek.
- In a jack plug, the connector between the tip and the sleeve.
- A round piece of (precious) metal worn around the finger or through the ear, nose, etc.
- A place where some sports or exhibitions take place; notably a circular or comparable arena, such as a boxing ring or a circus ring; hence the field of a political contest.
- Either of the pair of clamps used to hold a telescopic sight to a rifle.
- A hierarchical level of privilege in a computer system, usually at hardware level, used to protect data and functionality (also protection ring).
- An algebraic structure as above, but only required to be a semigroup under the multiplicative operation, that is, there need not be a multiplicative identity element.
- A telephone call.
- A burner on a kitchen stove.
- An instrument, formerly used for taking the sun's altitude, consisting of a brass ring suspended by a swivel, with a hole at one side through which a solar ray entering indicated the altitude on the graduated inner surface opposite.
verb
- To produce (a sound) by ringing.
- To produce the sound of a bell or a similar sound.
- To telephone (someone).
- To steal and change the identity of (cars) in order to resell them.
- To make (a bell, etc.) produce a resonant sound.
- To ride around (a group of animals, especially catle) to keep them milling in one place; hence (intransitive), to work as a drover, to muster cattle.
- to resound, reverberate, echo.
- Of a bell, etc., to produce a resonant sound.
- Of something spoken or written, to appear to be, to seem, to sound.
- To surround or fit with a ring, or as if with a ring.
- To produce music with bells.
- To enclose or surround.
- To attach a ring to, especially for identification.
- To make an incision around; to girdle; to cut away a circular tract of bark from a tree in order to kill it.
- To rise in the air spirally.
adj
- Of a group: having no normal subgroup.
- Consisting of a single individual or zooid; not compound.
- Consisting of one single substance; uncompounded.
- Undistinguished in social condition; of no special rank.
- Without ornamentation; plain.
- Free from duplicity; guileless, innocent, straightforward.
- Homogenous.
- Feeble-minded; foolish.
- Using steam only once in its cylinders, in contrast to a compound engine, where steam is used more than once in high-pressure and low-pressure cylinders.
- Not compound, but possibly lobed.
- Uncomplicated; taken by itself, with nothing added.
noun
adv
English words for 'a set that is empty; a set with no members'
As you may have noticed, above you will find words for "a set that is empty; a set with no members". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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Of or pertaining to a prototype
DTM
Without horns
Huntington's disease
distrust.
globefish
to push (someone) around
anchor ring
untranslatable
To mean
to reach an impasse
an exorbitant price
acacia
Inflexible
a ne'er-do-well.
apathetic.
defeating
work.
purgation
amblyopia
great distance
glaucoma
melodica
directness
shrewish.
precipitously.
caffeine
each person
blameless
cultivator
nobles
(raw) material
flu
to behead
to be nervous
irresistible force
fearlessness.
to put to use
refining
visionary.
universality
adding
old custom
afternoon
to be given
to take advantage of
good-looking
affluent
to combine
request