1. C 标记，符号　 a standard mark; sth which is seen and represents a generally-known meaning
2. C 手势，姿势，信号　 a movement of the body intended to express a particular meaning or command; signal
3. C 征兆，迹象　 sth that shows or points to the presence or likely future existence of a particular condition, fact or quality

　bear ～s of　佩带…标记
　look at a ～　看标记
　make a ～　做标记
　see a ～　看到标记
　hang up a ～　挂招牌
　post a ～　贴出告示
　put up a ～　贴出告示
　exhibit ～　现出迹象
　make no ～　没有迹象
　show ～s of　显示迹象
　understand the ～s of　明白…的信号
　give sb a ～　向某人示意
　mathematical ～s　数学符号
　clear ～　明确的标记
　great ～　很大的牌子
　encouraging ～　令人鼓舞的迹象
　hopeful ～　希望的征兆
　pleasing ～　令人高兴的迹象
　vital ～s　生命迹象
　welcome ～　可喜的迹象
　deaf-and-dumb ～s　聋哑人的手势
　high ～ 　（通过眼色〔手势〕传递的）暗号
　physical ～　体征
　call ～　呼叫信号
　dollar ～　美元的符号
　pub ～　酒吧招牌
　road ～　路标
　shop ～　商店招牌
　street ～　路标
　traffic ～　交通标志
　～ language　聋哑人的手语
　by ～s　用手势
　speak by ～s　用手势示意
　in ～ of friendship　表示友好
　in ～ of peace　作为和平的标志
　～s of agreement　同意的表示
　～s of catching cold　伤风的征兆
　～s of fear　畏惧的迹象
　～s of life　生命的迹象
　～s of murder　凶杀迹象
　～s of storm　暴风雨的预兆
　～s of suffering　痛苦的表情
　～ on the door　门上的牌子

　The sign means that cars cannot enter.　这种标志表示汽车不能入内。
　Those signs pointed the route to be followed by visitors.　那些标志为参观者指明了路线。
　The road signs confused the driver.　这些路标把司机弄糊涂了。
　The sign bears the shopkeeper's name.　招牌上写着店主的名字。
　I'll be waiting for you at the entrance of the pub which has a sign painted with a red lobster.　我将在画着红龙虾招牌的酒吧门口等你。
　Deaf people talk with signs.　聋人谈话用手势表示意思。
　I explained what I couldn't explain in words by signs.　凡不能用言词来表达的，我就用手势说明。
　All the signs at the moment point to an early resumption of the fighting between the two countries.　眼下的一切迹象都表明，这两个国家将很快重新开战。
　I could not write my name, so I made the sign of the cross.　我不会写我的名字，就画了一个十字。
　The shoulders of his uniform were piped with signs of his rank.　他制服肩上佩有表示军衔的标志。
　All over the country are seen signs of prosperity.　全国各地到处呈现一派繁荣景象。
　She passed close by me without a sign of recognition.　她与我擦肩而过，却没认出我。
　At the mere mention of the name of the visitor, he pulled a face, which I took for a sign of disapproval.　一提到来访者的名字，他就板着脸，在我看来，这表示他不赞成。
　The woman scanned the doctor's face for a sign of hope.　那女人审视着医生的脸，希望找到一丝希望。
　The doctor examined him but could find no sign of heart disease.　医生给他做了检查，没有发现有心脏病的症状。
　Even to dream of seeing one's reflection in water is interpreted as a sign of death in many countries.　在许多国家，甚至梦见看到自己在水中的倒影都被看作死亡的征兆。
　A dark cloud is a sign of rain.　乌云是降雨的预兆。
　A red sky in the morning is said to be a sign of bad weather.　早晨天上呈红色据说是坏天气的预兆。
　He climbed down at the first sign of opposition.　他一见到反对的迹象，就缩了回去。
　I looked all over the place, but there was no sign of him anywhere.　我察看了所有的地方，但哪儿也见不到他。
　I could see no sign of life in the deserted town.　在这个无人居住的城镇，我看不见一点生命的迹象。
　The book bears all the signs of being the product of a ripe scholar.　这本书里到处呈现着老练学者的结晶。
　The roof of the new tunnel hasn't been properly supported; it shows signs of falling in.　新隧道的顶支撑得不好，已显出坍塌的迹象。
　The traveller flashed up a sign to show passing motorists where he wanted to go.　这位旅行者朝过往汽车晃动一个牌子，告诉司机他要去的地方。
　She put her finger to her lips as a sign to be quiet.　她将手指放在唇上表示应安静。
　She gave us a sign to leave the room.　她示意我们离开房间。
　The conductor gave the engineer the sign to start.　管理人员示意工程师启动。
　There is every sign to show that the enemy will retreat.　种种迹象表明敌人要退却。
　He made a sign to me to withdraw.　他示意我退下。
　I saw no sign that he would change his mind.　我看不出他有改变主意的迹象。
　Foresee by every sign that it would rain before morning.　根据各种迹象预知天亮前将要下雨。
　Her irritable behaviour is a sure sign that she's worried about something.　她的烦躁举止表明她一定在为什么事担心。
　They waved the white flag as a sign that they wished to surrender.　他们挥动白旗表示愿意投降。
　There are signs that the economy is improving.　有种种迹象表明经济正在好转。

 ♣ a sign of the times
　某时期的标志　thing that shows the nature of a particular period
　〔说明〕 a sign of the times常用于贬义。
　The rising level of crime is a sign of the times.　犯罪率增高是这一时代的特征。
　Kids nowadays are lazy; it's a sign of the times.　如今的孩子很懒，时下就是这个样子。

 ♣ sign, mark, symbol, token
　参见mark条。

　这袜子看得出已经穿旧了。
　［误］ The stockings show sign of wear.
　［正］ The stockings show signs of wear.
　［析］ show signs of（表示“显出…的迹象”)一语中， sign习惯用复数。

1. vt. & vi.签名，签字　 write one's name as signature
2. vt. & vi.发信号，做手势　 give sign to

　～ a cheque　在支票上签字
　～ a document　签署文件
　～ a letter　签署信件
　～ a painting　在画上签名
　～ a treaty　在条约上签字
　～ an agreement　在协议上签字
　～ one's name　签名
　～ sb's autograph book　在某人的签名册上签名
　～ the petition　在请愿书上签名
　～ authoritatively　官方地签署
　～ blindly　盲目地签字
　～ dejectedly　沮丧地签字
　～ delightfully　愉快地签字
　～ despairingly　绝望地签字
　～ felicitously　恰当地签字
　～ formally　正式签字
　～ handsomely　大方地签署
　～ hastily　仓促地签字
　～ immediately　立即签字
　～ indiscreetly　轻率地签字
　～ legally　合法地签字
　～ judiciously　审慎地签字
　～ nominally　名义上地签字
　～ perfunctorily　草率地签字
　～ precipitately　鲁莽地签字
　～ prudently　谨慎地签字
　～ recklessly　轻率地签字
　～ reluctantly　勉强地签字
　～ responsibly　负责任地签字
　～ secretly　秘密地签字
　～ solemnly　郑重地签字
　～ willingly　自愿地签字
　～ away　签字放弃（权利等）
　～ away one's rights　签字放弃权利
　～ in　签到，签收
　～ in at Health Club　在健康俱乐部签到
　～ off　广播电台宣布广播节目结束
　～ off at midnight　半夜停播
　～ out　签名以记录离去时间
　～ over　签字移交
　～ up for a job　签约参加工作
　～ up for a voyage to India　签约参加去印度的航行
　～ in ink　用钢笔签字
　～ on　签字于雇用契约
　～ on another group of workers　签约再雇用一批工人

　He refused to sign.　他拒绝签字。
　Nothing shall reduce me to sign.　没有什么能迫使我签字。
　When we arrive at the office each morning, we have to sign on the dotted line.　我们每天早上到达办公室的时候，得在签到簿上签到。
　The local football team has signed a new goalkeeper; he has signed for the local team.　当地的足球队聘用了一名新的守门员，他已跟这支足球队签了约。
　He signed a document.　他在一份文件上签字。
　The foreign ministers signed the treaty.　外交部长们签署了这项条约。
　They are ready to sign the contract.　他们准备签合同。
　He has forgotten to sign his name.　他忘了签上他的名字。
　Those who'd like to visit the exhibition sign your name here.　要去参观展览的人请在这里签名。
　He does not sign his contributions to the press.　他投给报社的稿件上从不署名。
　He didn't sign the register, that is to say, I've no record that he ever did.　他没有签字登记，就是说，我没有他签过字的记录。
　The imperialist powers forced the Qing Dynasty to sign a series of unequal treaties.　帝国主义列强迫使清王朝签订了一系列不平等条约。
　The teacher signed his approval.　老师签了字表示同意。
　The treaty was signed three days ago at Bucharest.　条约三天前在布加勒斯特签订。
　The painting isn't signed so we don't know who it's by.　这幅画没有签名，不知道是谁画的。
　Both sides should stick to the contract when it is signed.　合同签订后，双方都应信守合同。
　The will had never been signed.　这份遗嘱根本未经签署。
　The hostilities ended when the truce was signed.　当停战协定一签署，敌对行动随即结束。
　Glancing to the door, he signed that he was ready to leave.　他看着门口打手势表示他随时可以离开。
　The police signed to the driver that it was time to go.　警察示意司机该走了。
　The policeman signed them to stop.　警察做手势叫他们停住。
　The teacher signed me to enter.　老师示意要我进去。
　He signed her to lower her voice.　他示意要她把声音放低点。
　He signed her to enter the room.　他用手势叫她走进房间。
　The policeman signed for me to pull over to the curb.　警察打手势叫我把车子转到路边停下。
　He signed to the waiter to bring the bill.　他向服务生示意拿账单过来。
　The newspaper carried a signed article on the situation in the Middle East.　这家报纸登载了一篇有关中东局势的署名文章。

 ♣ sign away　(v.+adv.)
　签字让出或放弃　lose by signing
　He has just signed away a fortune.　他刚刚签字让出了一份财产。
　He signed away all his rights to the invention.　他签字放弃了这项发明的全部权利。
 ♣ sign in　(v.+adv.)
　通过签字（使）取得入场权　(cause to) gain admittance by signing
　They signed in last night around eleven o'clock.　他们在昨晚十一时左右签到。
　He signed us in to his club.　他签字让我们进他的俱乐部。
　Can you find someone to sign me in?　你能找个人签字放我进去吗?
 ♣ sign off　(v.+adv.)
1. 停止广播 end a broadcast
　What time does CCTV sign off?　中国中央电视台播送的电视节目什么时候结束?
　It's time to sign off for the day; listen in again tomorrow.　今天广播结束，请明天再收听。
2. 签字结束书信 end a letter by signing
　I've written far too much and had better sign off.　我这封信写得太长了，最好就此落款结束。
　I'd better sign off now or I shall miss the collection of the post.　我最好就此结束，否则我就赶不上收寄这班邮件了。
 ♣ sign on　(v.+adv.)
1. 签约受雇 join by signing
　He signed on yesterday and will start work on Monday.　他昨天签了合同，星期一就要上班。
2. 雇用 engage as an employee
　They signed on a large number of casual labourers last week.　上星期他们雇用了大量临时工。
3. 签署证书参军 join the army by signing a document
　When did you sign on?　你什么时候参的军?
　He signed on for nine years in the infantry.　他签署了志愿书要在步兵服役九年。
4. 开始广播 begin to broadcast
　It's time for you to sign on.　你该播音了。
 ♣ sign out　(v.+adv.)
　签名离开　indicate one's departure by signing a register
　He signed out at ten this morning.　他在今天上午十点签字离开。
　I'll sign them out and guarantee their good behaviour.　我给他们签字放行，保证他们行为端正。
　He was the first to sign himself out that day.　他是那天第一个登记离去的人。
 ♣ sign up　(v.+adv.)
　跟…签订合同　arrange a contract with
　He has signed up a new star for the series.　他已经跟一个新影星签订合同拍一套系列片。

 ♣ 下面各组中两个句子的意思相同：
　
　

　［同义词］ n. mark, symbol, token, gesture, gesticulation v. approve, authorize
　［词源］　中古英语signe <古法语 <拉丁语signum（记号，标记）