Annul

The term "Annul" means:

invalidate
delete
revoke
cancel
abrogate
repeal
to make void or null
abolish
cancel
invalidate:
to officially announce that something such as a law, agreement, or marriage no longer exists
to declare or make legally invalid or void
To legally end a contract, job, official position, law or marriage
to reduce to nothing
to make ineffective or inoperative
Oblterate
Netralise
To make or declare void or invalid, as a marriage or a law; nullify.
To bring to an end the effect or existence of; cancel out
to make or declare void or null; invalidate: to annul a marriage.
to abolish; cancel: Joy annulled our cares.
abnegate
abolere
abolish
abrogare
annihilate
call back
cancel
cancel out
countermand
counterorder
to destroy
discontinue
disestablish
expunge
extinguish
invalidate
make illegal
make void
negate
nullify
obliterate
overrule
put an end to
recall
reduce to nothing
reduce to nought
to relinquish
render null and void
render void
to renege
repeal
to repudiate
rescind
retract
revoke
set aside
solvere
strike out
terminate
unmake
vitiate
void
withdraw