partner
dual
mate
apposition
shoulder-to-shoulder
complement
bilateralism
pair
tandem
equilateral
both
either
subfigure
biune
doublet
double
fellow
adherence
counterpart
two pair
intercouple
twain
duodecillionth
duplet
span
distich
dyad
duet
couple
yoke
couplet
duad
duo
twosome
brace
pendant
tesselated
unpaired
unmated
unmatched
binary
superposition
full house
odd
another
set
meron
many-bodied
separator
mutually
contrapair
about one's ears
sidelong
structure
side by side
go-together
deuces
one-third
similitude
tierce
third
twos
conformation
flank
overpost
ducks
top and tail
tertium quid
face-to-face
corps
as one
uniformity
moiety
-ton
segment
section
digitate
mediety
glue
interjangle
multibodied
opposite
assembly
intervisible
emblema
twin
matcher
subjoinder
match
end-to-end
subobject
interpermeate
twofold
interfolding
interitem
biune
double
tesselated
unpaired
unmated
unmatched
binary
odd
many-bodied
sidelong
face-to-face
digitate
multibodied
opposite
intervisible
end-to-end
twofold
interitem
shoulder-to-shoulder
mutually
side by side
partner
dual
mate
apposition
complement
bilateralism
pair
tandem
equilateral
subfigure
doublet
fellow
adherence
counterpart
two pair
twain
duodecillionth
duplet
span
distich
dyad
duet
couple
yoke
couplet
duad
duo
twosome
brace
pendant
superposition
full house
set
meron
separator
contrapair
structure
go-together
deuces
one-third
similitude
tierce
third
twos
conformation
overpost
ducks
top and tail
tertium quid
corps
uniformity
moiety
segment
section
mediety
glue
assembly
emblema
twin
matcher
subjoinder
match
subobject
interfolding
intercouple
flank
interjangle
interpermeate
noun
- One of each halves of a pair of someone or something that belongs together.
- A spouse or other person with whom one shares a domestic, romantic or sexual bond.
- Someone with whom one plays on the same side in a game, such as card games or doubles tennis.
- Someone with whom one dances in a two-person dance.
- One of the pieces of wood comprising the framework which strengthens the deck of a wooden ship around the holes through which the mast and other fittings pass.
- A group financial arrangement in which each member contributes a set amount of money over a set period.
- A member of a business or law partnership.
verb
noun
- Of an item that is one of a pair, the other item in the pair.
- Of a vector in an inner product space, the linear functional corresponding to taking the inner product with that vector. The set of all duals is a vector space called the dual space.
- The dual number.
- Of a regular polyhedron with V vertices and F faces, the regular polyhedron having F vertices and V faces.
adj
- Characterized by having two (usually equivalent) components.
- Pertaining to a grammatical number in certain languages that refers to two of something, such as a pair of shoes.
- Exhibiting duality.
- Being the dual of some other category; containing the same objects but with source and target reversed for all morphisms.
- Being the space of all linear functionals of (some other space).
- Pertaining to two, pertaining to a pair of.
verb
noun
- The other member of a matched pair of objects.
- Friendly term of address to a stranger, usually male, of similar age.
- A technical assistant in certain trades (e.g. gasfitter's mate, plumber's mate); sometimes an apprentice.
- A breeding partner.
- In naval ranks, a non-commissioned officer or his subordinate (e.g. Boatswain's Mate, Gunner's Mate, Sailmaker's Mate, etc).
- A ship's officer, subordinate to the master on a commercial ship.
- A suitable companion; a match; an equal.
- A first mate.
- A friend, usually of the same sex.
- A fellow, comrade, colleague, partner or someone with whom something is shared, e.g. shipmate, classmate.
- The abovementioned plant; the leaves and shoots used for the tea
verb
- To arrange in matched pairs.
- To copulate with.
- To match, fit together without space between.
- To introduce (animals) together for the purpose of breeding.
- To match oneself against; to oppose as equal; to compete with.
- To move (a space shuttle orbiter) onto the back of an aircraft that can carry it.
- To come together as companions, comrades, partners, etc.
- To copulate.
- To marry; to match (a person).
- To pair in order to raise offspring.
- To fit (objects) together without space between.
noun
- A placing of two things side by side, or the fitting together of two things.
- A public disputation by scholars.
- The growth of successive layers of a cell wall.
- Appositio, the addition of an element not syntactically required.
- The relationship between such nouns or noun phrases.
- The quality of being side-by-side, apposed instead of being opposed, not being front-to-front but next to each other.
- A construction in which one noun or noun phrase is placed with another as an explanatory equivalent, both of them having the same syntactic function in the sentence.
- A (now purely ceremonial) speech day at St Paul's School, London.
noun
- either of two parts that mutually complete each other
- a word or phrase used to complete a grammatical construction
- a complete number or quantity
- number needed to make up a whole force
- something added to complete or embellish or make perfect
- one of a series of enzymes in the blood serum that are part of the immune response
verb
noun
- One of the constituent items that make up a pair.
- A couple of working animals attached to work together, as by a yoke.
- A boat for two sweep rowers.
- A score of zero runs (a duck) in both innings of a two-innings match.
- Used with binary nouns (often in the plural to indicate multiple instances, since such nouns are plural only, except in some technical contexts)
- A double play, two outs recorded in one play.
- The exclusion of one member of a parliamentary party from a vote, if a member of the other party is absent for important personal reasons.
- Two similar or identical things taken together; often followed by of.
- Two members of opposite parties or opinion, as in a parliamentary body, who mutually agree not to vote on a given question, or on issues of a party nature during a specified time.
- In a mechanism, two elements, or bodies, which are so applied to each other as to mutually constrain relative motion; named in accordance with the motion it permits, as in turning pair, sliding pair, twisting pair.
- A doubleheader, two games played on the same day between the same teams
- A poker hand that contains two cards of identical rank, which cannot also count as a better hand.
- A pair of breasts
- A pair of testicles
- Two people in a relationship, partnership or friendship.
verb
- To engage (oneself) with another of opposite opinions not to vote on a particular question or class of questions.
- To group into one or more sets of two.
- To bring two (animals, notably dogs) together for mating.
- To suit; to fit, as a counterpart.
- To come together for mating.
- to link two electronic devices wirelessly together, especially through a protocol such as Bluetooth
noun
- A pair of two similar or equal things; couple.
- A very small flowering plant, Dimeresia howellii.
- Either of two dice, each of which, when thrown, has the same number of spots on the face lying uppermost.
- A man’s waistcoat.
- A man’s close-fitting jacket, with or without sleeves, worn by European men from the 1400s to the 1600s.
- A word (or rather, a halfword) consisting of two bytes.
- One of two or more different words in a language derived from the same etymological root but having different phonological forms (e.g., toucher and toquer in French or shade and shadow in English).
- An imitation gem made of two pieces of glass or crystal with a layer of color between them.
- A quantum state of a system with a spin of ½, such that there are two allowed values of the spin component, −½ and +½.
- In textual criticism, two different narrative accounts of the same actual event.
- A word or phrase set a second time by mistake.
- A word ladder puzzle.
- An arrangement of two lenses for a microscope, designed to correct spherical aberration and chromatic dispersion, thus rendering the image of an object more clear and distinct.
- Dipole antenna.
adj
- Made up of two matching or complementary elements.
- Folded in two; composed of two layers.
- Having two aspects; ambiguous.
- False, deceitful, or hypocritical.
- Stooping; bent over.
- Of flowers, having more than the normal number of petals.
- Of twice the quantity.
- Of time, twice as fast.
- Of a family relationship, related on both the maternal and paternal sides of a family.
- Designed for two users.
- Of an instrument, sounding an octave lower.
verb
- To get a two-base hit.
- To act as substitute for (another theatrical performer in a certain role, etc).
- To serve a second role or have a second purpose.
- To turn sharply, following a winding course.
- To increase by 100%, to become twice as large in size.
- To fold over so as to make two folds.
- To operate as a double agent.
- To be the double of; to exceed by twofold; to contain or be worth twice as much as.
- (often followed by together or up) To join or couple.
- To be capable of performing (upon an additional instrument).
- To play (both one part and another, in the same play, etc).
- To double down.
- To multiply by two.
- (sometimes followed by up) To clench (a fist).
- To make a call that will double certain scoring points if the preceding bid becomes the contract.
- To transmit simultaneously on the same channel as another station, either unintentionally or deliberately, causing interference.
- To multiply the strength or effect of by two.
- To duplicate (a part) either in unison or at the octave above or below it.
- To unite, as ranks or files, so as to form one from each two.
- To repeat exactly; copy.
- To sail around (a headland or other point).
- To go or march at twice the normal speed.
- To cause (a ball) to rebound from a cushion before entering the pocket.
adv
noun
- The narrow outermost ring on a dartboard.
- Twice the number, amount, size, etc.
- A ghostly apparition of a living person; a doppelgänger.
- A two-base hit.
- A strike in which the object ball is struck so as to make it rebound against the cushion to an opposite pocket.
- Playing the same part on two instruments, alternately.
- A sharp turn, especially a return on one's own tracks.
- Synonym of double-quick (“fast marching pace”)
- A bet on two horses in different races in which any winnings from the first race are placed on the horse in the later race.
- A double-precision floating-point number.
- A former French coin worth one-sixth of a sou.
- A call that increases certain scoring points if the last preceding bid becomes the contract.
- A double feast.
- A redundant item for which an identical item already exists.
- A tile that has the same value (i.e., the same number of pips) on both sides.
- A person who resembles and stands in for another person, often for safety purposes
- Two competitions, usually one league and one cup, won by the same team in a single season.
- A drink with two portions of alcohol.
- A hit on this ring.
- A boat for two scullers.
- The feat of scoring twice in one game.
- The feat of winning two events in a single meet or competition.
- A copper coin worth one-eighth of a penny.
noun
- Either of two parts that fit together, or complement one another.
- One who or that which resembles another.
- A duplicate of a legal document.
- One who or that which has corresponding functions or characteristics.
- Either half of a flattened fossil when the rock has split along the plane of the fossil.
verb
noun
- two items of the same kind
- the complete duration of something
- the distance or interval between two points
- a unit of length based on the width of the expanded human hand (usually taken as 9 inches)
- a structure that allows people or vehicles to cross an obstacle such as a river or canal or railway etc.
- the act of sitting or standing astride
verb
noun
- two items of the same kind
- fabric comprising a fitted part at the top of a garment
- an oppressive power
- a pair of draft animals joined by a yoke
- support consisting of a wooden frame across the shoulders that enables a person to carry buckets hanging from each end
- a connection (like a clamp or vise) between two things so they move together
- stable gear that joins two draft animals at the neck so they can work together as a team
verb
noun
- two items of the same kind
- a support that steadies or strengthens something else
- a set of two similar things considered as a unit
- either of two punctuation marks ({ or }) used to enclose textual material
- a rope on a square-rigged ship that is used to swing a yard about and secure it
- elastic straps that hold trousers up
- an appliance that corrects dental irregularities
- a carpenter's tool having a crank handle for turning and a socket to hold a bit for boring
- a structural member used to stiffen a framework
verb
noun
- One of a pair; a counterpart.
- A short rope hanging down, used to attach hooks for tackles; a pennant.
- A lamp hanging from the roof.
- A piece of jewellery which hangs down as an ornament, especially worn on a chain around the neck.
- A long narrow flag at the head of the principal mast in a royal ship.
- The dangling part of an earring.
- An ornament of wood or of stone hanging downwards from a roof.
- A supporting post attached to the main rafter.
- The stem and ring of a watch, by which it is suspended.
adj
- Having two equally important parts; related to something with two parts.
- Of an operation, function, procedure, or logic gate, taking exactly two operands, arguments, parameters, or inputs; having domain of dimension 2.
- Focusing on two mutually exclusive conditions.
- Concerning logic whose subject matter concerns binary states.
- Being in one of two mutually exclusive states.
- Of data, consisting coded values (e.g. machine code) not interpretable as plain or ASCII text (e.g. source code).
- Concerning numbers and calculations using the binary number system.
noun
- Synonym of binary asteroid.
- Synonym of binary star.
- Synonym of binary file; a file consisting of data other than human-readable text.
- Synonym of binary planet.
- The bijective base-2 numeral system, which uses only the digits 0 and 1.
- A state in which only two values are possible, in which something must have one value or the other.
noun
- The placing of one thing on top of another.
- The deposition of one stratum over another; the principle that in a series of sedimentary strata, the lower strata are the older.
- The situation in quantum mechanics where two or more quantum states are added together (superposed) to yield another valid quantum state.
noun
- a group of things of the same kind that belong together and are so used
- (mathematics) an abstract collection of numbers or symbols
- several exercises intended to be done in series
- representation consisting of the scenery and other properties used to identify the location of a dramatic production
- an unofficial association of people or groups
- a relatively permanent inclination to react in a particular way
- the act of putting something in position
- a unit of play in tennis or squash
- the process of becoming hard or solid by cooling or drying or crystallization
- the descent of a heavenly body below the horizon
- (psychology) being temporarily ready to respond in a particular way
- any electronic equipment that receives or transmits radio or tv signals
verb
- put into a certain place or abstract location
- fix conclusively or authoritatively
- decide upon or fix definitely
- establish as the highest level or best performance
- put into a certain state; cause to be in a certain state
- fix in a border
- make ready or suitable or equip in advance for a particular purpose or for some use, event, etc
- set to a certain position or cause to operate correctly
- locate
- disappear beyond the horizon
- adapt for performance in a different way
- put or set (seeds, seedlings, or plants) into the ground
- apply or start
- become gelatinous
- set in type
- put into a position that will restore a normal state
- insert (a nail or screw below the surface, as into a countersink)
- give a fine, sharp edge to a knife or razor
- urge to attack someone
- estimate
- equip with sails or masts
- get ready for a particular purpose or event
- alter or regulate so as to achieve accuracy or conform to a standard
- produce fruit
- arrange attractively
adj
prep_phrase
noun
- A cohesive whole built up of distinct parts.
- The overall form or organization of something.
- The underlying shape of a solid.
- Underwater terrain or objects (such as a dead tree or a submerged car) that tend to attract fish
- A body, such as a political party, with a cohesive purpose or outlook.
- A set along with a collection of finitary functions and relations.
- Several pieces of data treated as a unit.
- A set of rules defining behaviour.
verb
noun
- one of three equal parts of a divisible whole
- the fielding position of the player on a baseball team who is stationed near the third of the bases in the infield (counting counterclockwise from home plate)
- following the second position in an ordering or series
- the musical interval between one note and another three notes away from it
- the third from the lowest forward ratio gear in the gear box of a motor vehicle
- the base that must be touched third by a base runner in baseball
adj
adv
verb
- To be placed to the side(s) of something (usually in terms of two objects, one on each side).
- To defend the flank(s) of.
- To attack the flank(s) of.
- To place to the side(s) of.
adj
noun
- The flesh between the last rib and the hip; the side.
- The sides of a bastion perpendicular to the wall from which the bastion projects.
- The outermost strip of a road.
- The wing, one side of the pitch.
- That part of the acting surface of a gear wheel tooth that lies within the pitch line.
- A cut of meat from the flank of an animal.
- The side of something, in general senses.
- The extreme left or right edge of a military formation, army etc.
noun
verb
noun
verb
- To provide (a train) with a locomotive at each end, for ease of reversal.
- To remove the top and bottom of (an item), for example when preparing carrots for cooking.
- To set the limits of (an audio tape recording, a digital video file, etc.) by adding physical markers or by trimming unwanted portions.
- To bathe (a small child) in a minimal way by wiping its face and bottom.
- To add to the beginning and end of (something), such as the salutation and valediction added to a letter.
noun
- one of several parts or pieces that fit with others to constitute a whole object
- a self-contained part of a larger composition (written or musical)
- a very thin slice (of tissue or mineral or other substance) for examination under a microscope
- a distinct region or subdivision of a territorial or political area or community or group of people
- a small team of policemen working as part of a police platoon
- one of the portions into which something is regarded as divided and which together constitute a whole
- a land unit equal to 1 square mile
- (geometry) the area created by a plane cutting through a solid
- a small class of students who are part of a larger course but are taught separately
- a division of an orchestra containing all instruments of the same class
- a small army unit usually having a special function
- a specialized division of a large organization
- a segment of a citrus fruit
- the cutting of or into body tissues or organs (especially by a surgeon as part of an operation)
verb
adj
- the other one of a complementary pair
- being directly across from each other; facing
- moving or facing away from each other
- altogether different in nature or quality or significance
- characterized by opposite extremes; completely opposed
noun
- a word that expresses a meaning opposed to the meaning of another word, in which case the two words are antonyms of each other
- a relation of direct opposition
- a contestant that you are matched against
- something inverted in sequence or character or effect
adv
adj
noun
- A set of pieces that work together in unison as a mechanism or device.
- A building block of an application, similar to a DLL, but containing both executable code and information normally found in a DLL's type library. The type library information in an assembly, called a manifest, describes public functions, data, classes, and version information.
- A beat of the drum or sound of the bugle as a signal to troops to assemble.
- A congregation of people in one place for a purpose.
- The act of putting together a set of pieces, fragments, or elements.
- A legislative body.
noun
noun
- Either of two similar or closely related objects, entities etc.
- A twin size mattress or a bed designed for such a mattress.
- A room in a hotel, guesthouse, etc. with two beds; a twin room.
- A twin crystal.
- A two-engine aircraft.
- Either of two people (or, less commonly, animals) who shared the same uterus at the same time; one who was born at the same birth as a sibling.
verb
- To split, part; to go away, depart.
- To separate, divide.
- To join, unite; to form links between (now especially of two places in different countries); to pair with.
- To be, or be like, a pair of twins (for example, to dress identically); to be paired or suited.
- To give birth to twins.
- To be, or be like, a twin to (someone else); to match in some way.
adj
noun
- A pair of items or entities with mutually suitable characteristics.
- A device made of wood or paper, at the tip coated with chemicals that ignite with the friction of being dragged (struck) against a rough dry surface.
- Any contest or trial of strength or skill, or to determine superiority.
- Equality of conditions in contest or competition.
- A candidate for matrimony; one to be gained in marriage.
- A competitive sporting event such as a boxing meet, a baseball game, or a cricket match.
- Equivalence; a state of correspondence.
- A marriage.
- Suitability.
- An agreement or compact.
- A perforated board, block of plaster, hardened sand, etc., in which a pattern is partly embedded when a mould is made, for giving shape to the surfaces of separation between the parts of the mould.
- Someone with a measure of an attribute equaling or exceeding the object of comparison.
verb
- To make a successful match or pairing.
- To agree; to be equal; to correspond.
- To equal or exceed in achievement.
- To agree with; to be equal to; to correspond to.
- To fit together, or make suitable for fitting together; specifically, to furnish with a tongue and groove at the edges.
- To be an example of a rule or regex.
noun
- An object that is part of another object.
- An object and a monomorphism from it to another object, which monomorphism is interpreted as an inclusion. Actually it is an equivalence class of monomorphisms to the same object, where the equivalence relation is the ability of a pair of monomorphisms to factor through each other.
adj
English words for 'One of each halves of a pair of someone or something that belongs together.'
As you may have noticed, above you will find words for "One of each halves of a pair of someone or something that belongs together.". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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