To recall a power or authority previously conferred, or annul, repeal, rescind or cancel privileges or registration. In the case of Commodity Futures Trading Commission registration proceedings, to take away a previously granted registration.

To cancel legally.

withdraw, repeal, or cancel probation or parole for an adult.

to put an end to, cancel BACK

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

To annul or make void by recalling or taking back; cancel, repeal, reverse.

Annull, repeal or reverse; to legally cancel a will

To cancel or nullify a legal document.

To annul. To cancel or terminate.

to fail to follow suit when required. Also, "renege."

the mistake of not following suit when able to do so

fail to follow suit when able and required to do so

a failure to follow suit when able, which is subject to penalties but cannot happen at Yahoo

To discard on a trick when holding a card in the suit led.

The play of a card of another suit by a player who is able to follow suit or to comply with a lead penalty.

A revoke (also called a renege) is a violation of important rules regarding the play of tricks in trick-taking card games serious enough to render the round invalid. A revoke is a violation ranked in seriousness somewhat below overt cheating, with the status of a more minor offense only because, when it happens, it is usually accidental.