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English definition of “sign”

sign

verb [I/T] (WRITE)   /sɑɪn/
to write your name on a document to show that you agree with it or that you have written it yourself: [T] to sign a letter/contract/check [I] Please sign for the package when it arrives (= write your name on a form to show that you have received it). If an organization signs someone, that person has officially become a member of the organization by agreeing to a contract: [T] The team signed four new players this week.
(Definition of sign verb (WRITE) from the Cambridge Academic Content Dictionary © Cambridge University Press)
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