n.签名，署名，签字，签署，明显特征，鲜明特色，识别标志

原形：signature复数：signatures

Someone had forged manager's signature on the contract.
有人在合同上伪造了经理的签名。
Bright colours are this painter's signature.
鲜艳的色彩是这位画家的标志。
We need your signature at the bottom of the page.
我们需要你在页面底部签名。
Please sign here to confirm your acceptance of the terms and conditions.
请在这里签名确认您接受条款和条件。
She signed off on the project, indicating her approval.
她在项目上签了名，表示批准。
The contract is not valid until both parties have signed it.
双方都签名后，合同才有效。
He left a distinctive signature on all his paintings.
他在所有的画作上都留下了他的独特签名。
The bank requires a signature to authorize the transaction.
银行需要签名来授权交易。
I recognized his handwriting immediately; I would know his signature anywhere.
我立刻认出了他的笔迹，我在任何地方都能认出他的签名。
She signed an autograph for her fans after the concert.
音乐会结束后，她为粉丝们签了名。
The forged signature was so convincing that it fooled everyone.
那个伪造的签名如此逼真，以至于骗过了所有人。
The document must be signed in the presence of a witness.
这份文件必须在证人面前签署。
He signed the letter with 'Love always,' a personal touch to his correspondence.
他在信件末尾写上了“永远的爱”，这是他通信中的一份个人情感表达。