sign /sain/ I. n.［c］1.记号，信号：Words are the signs of ideas.言语是思想的符号。2.招牌，标记：Pay attention to the road signs! 注意路牌! 3.迹象，征兆: Very often dark clouds are a sign of rain. 乌云常是下雨的预兆。 4.手势，(头、手、眼等的)示意动作：He made a sign to me to leave the room. 他示意我离开房间。 ‖II. vt. & vi. 1.签(名)，签字于(信、文件等)： The agreement was signed today. 协定今天签字了。2.以手势(或其他动作)表示：The teacher signed (to) me to enter. 老师打手势让我进来。3. 用于短语动词sign away 签约放弃权利：He had signed away his rights to publish the research.他签约放弃出版调查材料的权利。sign for 因收到…签字：Could someone sign for this parcel?有人能为收到这个包裹签字吗？sign in 签字入门：Visitors please sign in at reception.来访者请在接待处签字。sign off 谢幕；停止工作；医生签字准假；She signed off her show by wishing all her listeners a happy new year.她祝听众们新年快乐结束了表演。I’m signing off early today - I’ll see you tomorrow. 我今天下班早，我明天看你去。She was signed off by her doctor for a month.医生准她一个月的病假。sign on/up 同意参加；签约工作：I’ve signed on to help at the school fair.我同意在学校展览会上帮忙。She’s signed on with a agency.她跟一个中介机构签约上班。sign out 签字出门(cf. sign in) ：Don’t forget to sign out before you leave.出门时别忘了签字。
［辨析］与symbol和badge辨见symbol
signal /ˈsiɡnəl/ I. n. ［c］信号，暗号：traffic signals 交通信号；send smoke signals 发烟雾信号 ‖II. vt. & vi. (-naled或-nalled;-naling或-nalling) (向…)发信号：signal for quiet示意大家安静 He signaled for the waitress to come over. 他招手示意服务员过来。He signaled the waiter to bring the menu.他示意服务员把菜单拿来。
/sain/ I. n.［c］1.记号，信号：Words are the signs of ideas.言语是思想的符号。2.招牌，标记：Pay attention to the road signs! 注意路牌! 3.迹象，征兆: Very often dark clouds are a sign of rain. 乌云常是下雨的预兆。 4.手势，(头、手、眼等的)示意动作：He made a sign to me to leave the room. 他示意我离开房间。 ‖II. vt. & vi. 1.签(名)，签字于(信、文件等)： The agreement was signed today. 协定今天签字了。2.以手势(或其他动作)表示：The teacher signed (to) me to enter. 老师打手势让我进来。3. 用于短语动词sign away 签约放弃权利：He had signed away his rights to publish the research.他签约放弃出版调查材料的权利。sign for 因收到…签字：Could someone sign for this parcel?有人能为收到这个包裹签字吗？sign in 签字入门：Visitors please sign in at reception.来访者请在接待处签字。sign off 谢幕；停止工作；医生签字准假；She signed off her show by wishing all her listeners a happy new year.她祝听众们新年快乐结束了表演。I’m signing off early today - I’ll see you tomorrow. 我今天下班早，我明天看你去。She was signed off by her doctor for a month.医生准她一个月的病假。sign on/up 同意参加；签约工作：I’ve signed on to help at the school fair.我同意在学校展览会上帮忙。She’s signed on with a agency.她跟一个中介机构签约上班。sign out 签字出门(cf. sign in) ：Don’t forget to sign out before you leave.出门时别忘了签字。
［辨析］与symbol和badge辨见symbol
signal /ˈsiɡnəl/ I. n. ［c］信号，暗号：traffic signals 交通信号；send smoke signals 发烟雾信号 ‖II. vt. & vi. (-naled或-nalled;-naling或-nalling) (向…)发信号：signal for quiet示意大家安静 He signaled for the waitress to come over. 他招手示意服务员过来。He signaled the waiter to bring the menu.他示意服务员把菜单拿来。
