nullify :: Lexipedia - Where words have meaning

v. bring to an end or halt; "She ended their friendship when she found out that he had once been convicted of a crime"; "The attack on Poland terminated the relatively peaceful period after WW I"

offset, cancel, set off

v. make up for; "His skills offset his opponent's superior strength"

void, invalidate, vitiate, make invalid

v. take away the legal force of or render ineffective; "invalidate a contract"

invalidate, nullify

v. show to be invalid

cancel, invalidate

v. make invalid for use; "cancel cheques or tickets"

overturn, lift, repeal, reverse, revoke, annul, countermand, rescind

v. annul by recalling or rescinding; "He revoked the ban on smoking"; "lift an embargo"; "vacate a death sentence"

get rid of, abolish

v. do away with; "Slavery was abolished in the mid-19th century in America and in Russia"

abrogate, revoke formally

v. revoke formally

veto, interdict, forbid, prohibit, proscribe, disallow

v. command against; "I forbid you to call me late at night"; "Mother vetoed the trip to the chocolate store"

reject, disapprove, refuse to approve

v. deem wrong or inappropriate; "I disapprove of her child rearing methods"

validate, prove valid

v. prove valid; show or confirm the validity of something

support, sustain, confirm, substantiate, corroborate, affirm

v. establish or strengthen as with new evidence or facts; "his story confirmed my doubts"; "The evidence supports the defendant"

validate, formalize, declare valid

v. declare or make legally valid

pass, clear, authorize, authorise, permit officially

v. grant authorization or clearance for; "Clear the manuscript for publication"; "The rock star never authorized this slanderous biography"

sign, ratify

v. approve and express assent, responsibility, or obligation; "All parties ratified the peace treaty"; "Have you signed your contract yet?"

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