I'll be bound
safe in the knowledge
sure thing
verily
certainly
gimme
way
it's the truth, Ruth
safe bet
confirmably
maybe
incontrovertible
demonstrable
go bail
sure as shooting
sure as fate
sureness
verisimilar
chances are
apodeictic
matter of fact
could have sworn
apodictic
colourable
cert
undoubted
betcha
plausible
be it as it may
be that as it may
confident
convinced
bet the farm
positive
constat
make no mistake
sure as a gun
believe me
indubitable
verify
warrant
perceived
affirmative
100 percent
certainty
possible
noticeably
certitude
likely
in all likelihood
probably
belike
undoubtfully
in all probability
probable
indubitability
doubtlessly
take it from me
admittedly
undoubtedly
truism
seem
confirmatorily
doubtless
appear
easily
ostensive
true statement
confirmingly
where it's at
truth
truish
damn straight
undoubtably
sure as eggs
factiously
state
trueness
you can say that again
official
believe one's ears
short-fetched
absolutely
darn tootin'
flatly
no doubt
receive
bound
conditional
affirmation
semitrue
claim
Holy Writ
safe in the knowledge
incontrovertible
demonstrable
sure as shooting
verisimilar
apodeictic
apodictic
colourable
undoubted
plausible
confident
convinced
positive
constat
indubitable
perceived
100 percent
possible
probable
ostensive
where it's at
truish
official
short-fetched
darn tootin'
bound
semitrue
verily
certainly
confirmably
sure as fate
chances are
be it as it may
be that as it may
sure as a gun
noticeably
likely
in all likelihood
probably
belike
undoubtfully
in all probability
doubtlessly
admittedly
undoubtedly
confirmatorily
doubtless
easily
confirmingly
undoubtably
sure as eggs
factiously
flatly
no doubt
sure thing
gimme
safe bet
maybe
sureness
matter of fact
cert
certainty
certitude
indubitability
truism
true statement
truth
trueness
conditional
affirmation
claim
Holy Writ
could have sworn
bet the farm
verify
warrant
take it from me
seem
appear
state
believe one's ears
receive
English words for 'I am certain (that something is true)'
As you may have noticed, above you will find words for "I am certain (that something is true)". Hover the mouse over the word you'd like to know more about to view its definition. Click 
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Recent Queries
blouson
a ne'er-do-well.
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chronic disease
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practicable.
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breaking wave
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kyanite
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apple brandy
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fifth lunar month
A learned person
neigh
invigorating
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consultant
sugar daddy
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round trip
affixing
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true heart
haughtiness
gratuity
to encircle.
ninjutsu
Real
hence
covetousness
to dip
baggy
to print
named for the goddess.
abbreviation
dense
main point
wonderful