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Invalidate (Verb)

Make invalid for use; "cancel cheques or tickets".

Verbs of telling, asking, ordering, singing.

Declare invalid; "The contract was annulled"; "void a plea".

Verbs of political and social activities and events.

Show to be invalid.

Verbs of thinking, judging, analyzing, doubting.

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

Verbs of size, temperature change, intensifying, etc..