revoke
/rɪˈvəʊk/verb
1
- with obj. put an end to the validity or operation of (a decree, decision, or promise)撤回, 撤销, 废除, 取消（政令, 决定, 诺言）：
the men appealed and the sentence was revoked.
这些人上诉后, 判决被撤销了。
2
- no obj.(in bridge, whist, and other card games) fail to follow suit despite being able to do so（桥牌、惠斯特等牌戏中）有牌不跟。
派生词
revocation
nounrevocatory
adjectiverevoker
noun词源
late Middle English: from Old French revoquer or Latin revocare, from re- 'back' + vocare 'to call'.