Break a promise or commitment; go back on one’s word.

• Fail to honor an agreement or obligation.

违背承诺或约定；食言。

• 不履行协议或义务。

In trick-taking games, fail to follow suit despite being able.

在抓分牌类游戏中，能跟牌却未跟出花色。

Archaic: to deny, renounce, or disown.

古义或文语：否认、放弃或断绝关系。