#1 annul v. [invalidate, quash, void, avoid, nullify] declare invalid; "The contract was annulled"; "void a plea". wn
#2 annul v. [revoke, lift, countermand, reverse, repeal, overturn, rescind, vacate] cancel officially; "He revoked the ban on smoking"; "lift an embargo"; "vacate a death sentence". wn
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