sign
US /saɪn/
UK /saɪn/

名词
1.
2.
手势, 信号, 暗号
a gesture or action used to convey information or instructions
示例:
•
He gave a sign to the waiter to bring the bill.
他向服务员做了个手势,示意结账。
•
She communicated with him using hand signs.
她用手势与他交流。
3.
征兆, 预兆, 迹象
an event or circumstance that indicates a future outcome; an omen
示例:
•
The dark clouds were a sign of the coming storm.
乌云是暴风雨即将来临的征兆。
•
His sudden silence was a bad sign.
他突然的沉默是个不好的预兆。
动词
1.
签署, 签名
write one's name on (something) to authorize it or show one's agreement, acceptance, or obligation
示例:
•
Please sign your name at the bottom of the form.
请在表格底部签名。
•
She agreed to sign the contract.
她同意签署合同。
在 Lingoland 学习这个单词