及物动词

1. 废除，取消（合同等）；宣告（选举等）无效
If an election or a contract is annulled, it is declared invalid, so that legally it is considered never to have existed.

1. cancel officially

e.g. He revoked the ban on smoking
lift an embargo
vacate a death sentence

Synonym: revokeliftcountermandreverserepealoverturnrescindvacate

2. declare invalid

e.g. The contract was annulled
void a plea

Synonym: invalidatequashvoidavoidnullify