countermand

countermand vt.

取消, 撤消, 下反對命令召回

n.

反對命令, 取消

英英解釋:名詞countermand:
1. a contrary command cancelling or reversing a previous command
動詞countermand:
1. annul by recalling or rescinding
同義詞：revoke, annul, lift, reverse, repeal, overturn, rescind, vacate