sign
sign v. (1)签署 指在法律文书上签名、画押或作其他标志证明其记载的内容，使具有法律上的效力。如双方当事人签署合同。 (2)同意；参加
SIGN
sign
sign, vb. 1. To identify (a record) by means of a signature, mark, or other symbol with the intent to authenticate it as an act or agreement of the person identifying it (both parties signed the contract). 2. To agree with or join (the commissioner signed on for a four-year term).