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certify
certify
synonyms
confirm
endorse
attest
warrant
validate
corroborate
sanction
ratify
verify
approve
affirm
authenticate
authorize
accredit
substantiate
support
prove
bear out
license
demonstrate
vouch for
okay
guarantee
establish
uphold
swear
testify
aver
declare
witness
manifest
empower
show
evidence
state
assert
avow
recognize
commission
maintain
back
asseverate
profess
permit
document
rubber-stamp
argue
justify
determine
sign
more synonyms
certify
antonyms
deny
reject
disprove
refuse
veto
invalidate
disapprove
refute
forbid
revoke
contradict
repudiate
renounce
disavow
disallow
oppose
discredit
ban
prohibit
prevent
decertify
protest
forswear
disagree
lie under oath
swear falsely
miss
resist
lie
mislead
prevaricate
obstruct
perjure
theorize
destroy
falsify
delude
hold
nullify
repel
disqualify
free
withhold
withstand
inhibit
equivocate
hypothesize
confuse
void
hinder
more antonyms