FAQs About the word signed up

注册

to sign one's name in order to get, do, or take something, to sign one's name (as to a contract) in order to obtain, do, or join something

背书,公证的,签名,已经登录,签名过的,会签,认可,上墨的,已订阅,撰著

放电,退伍

signed on => 已经登录, signed (up or on) => 已签署(向上或向前), signatures => 签名, signals => 信号, signallers => 信号兵,