‘续签’ is a verb meaning ‘to renew (a contract, visa, subscription, or other formal agreement)’. It combines two characters: 续 (xù), meaning ‘to continue’ or ‘to extend’, and 签 (qiān), short for 签订 (qiān dìng) meaning ‘to sign’ — literally ‘to sign again’ or ‘to re-sign’. The word implies formal, official action to prolong an existing arrangement before its expiration.

It’s commonly used in administrative, employment, immigration, and service contexts — for example, renewing a work permit, extending a lease, or reactivating a gym membership. Unlike general verbs like ‘continue’, 续签 carries legal or procedural weight and almost always requires documentation, approval, or official verification. It is not used for informal or spontaneous extensions — you wouldn’t ‘续签’ a casual coffee date or a personal promise.