RichThesaurus
nullify
nullify
antonyms
validate
ratify
approve
confirm
allow
support
help
enact
permit
uphold
restore
accept
aid
retain
create
affirm
institute
establish
introduce
enforce
continue
sanction
pass
do
abet
facilitate
assist
encourage
legalize
keep
authorize
produce
repair
okay
rubber-stamp
vouch
put it over
swear on bible
penalize
testify
rack up
witness
state
pronounce
sew up
swear
stick to
prosper
realize
win
predicate
pull off
preserve
put in
score
start
tip
take care of
reserve
swear up and down
unbalance
repeat
perform
turn on
protect
sanctify
revalidate
profess
reach
say so
promote
schedule
recapitulate
save
set up
put on ice
revive
build
attest
maintain
abide by
go along
lock up
agree
assert
cross heart
hit
carry out
corroborate
attain
inspirit
do justice
concede
address
grant
face
accede
nail it
fulfill
advance
conclude
avouch
guarantee
marry
cooperate
certify
achieve
nail down
ice
deprive
guard
disproportion
avow
gain
insert
cinch
get there
asseverate
aver
complete
imbalance
effect
accomplish
consummate
add
construct
enhance
begin
get someplace
bring off
finish
insist
arrive
emphasize
initiate
manage
meet
go ahead
make hay
clinch
acknowledge
confess
do a bang-up job
admit
found
make it
do the trick
have a lock on
exacerbate
bless
bring about
do one proud
nullify
definitions
verb
To prevent from happening.
To make of no use or value; to cancel out.
To make legally invalid.