"revoke" in the noun sense
1. revoke, renege
the mistake of not following suit when able to do so
"revoke" in the verb sense
fail to follow suit when able and required to do so
2. revoke, annul, lift, countermand, reverse, repeal, overturn, rescind, vacate
"He revoked the ban on smoking"
"lift an embargo"
"vacate a death sentence"
Source: WordNet® (An amazing lexical database of English)
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