sign

symbol, badge, sign, signal, mark, token, attribute, emblem

这些名词均含“标志、象征、符号”之意。
symbol: 指作象征或表达某种深邃意蕴的特殊事物。
badge: 一般指金属证章或写有姓名的带状标志物。
sign: 普通用词，指人们公认事物的记号，也可指某种情况的征兆。
signal: 指为某一目的而有意发出的信号。
mark: 普通用词，含义广泛。既可指方便于辨认而有意做的标记，又可指自然形成的标记或有别于他事物的特征。
token: 语气庄重，指礼品、纪念物等作为表示友谊、爱情等的象征或标志。
attribute: 指人或物及其地位、属性的象征。
emblem: 指选定象征一个国家、民族或家庭等的图案或实物。

名词 sign:

1. a perceptible indication of something not immediately apparent (as a visible clue that something has happened)
   同义词：mark
2. a public display of a (usually written) message
3. any communication that encodes a message
   同义词：signal, signaling
4. structure displaying a board on which advertisements can be posted
   同义词：signboard
5. (astrology) one of 12 equal areas into which the zodiac is divided
   同义词：sign of the zodiac, star sign, mansion, house, planetary house
6. (medicine) any objective evidence of the presence of a disorder or disease
7. having an indicated pole (as the distinction between positive and negative electric charges)
   同义词：polarity
8. an event that is experienced as indicating important things to come
   同义词：augury, foretoken, preindication
9. a gesture that is part of a sign language
10. a fundamental linguistic unit linking a signifier to that which is signified--de Saussure
11. a character indicating a relation between quantities

动词 sign:

1. mark with one's signature; write one's name (on)
   同义词：subscribe
2. approve and express assent, responsibility, or obligation
   同义词：ratify
3. be engaged by a written agreement
4. engage by written agreement
   同义词：contract, sign on, sign up
5. communicate silently and non-verbally by signals or signs
   同义词：signal, signalize, signalise
6. place signs, as along a road
7. communicate in sign language
8. make the sign of the cross over someone in order to call on God for protection; consecrate
   同义词：bless

形容词 sign:

1. used of the language of the deaf
   同义词：gestural, signed, sign-language

1. Just sign on the dotted line and the car is yours.
   你只需签署这份文件，这辆汽车就是你的了。
2. Arsenal have just signed a new striker.
   阿塞纳尔队刚雇用了一名新前锋。
3. The football team has signed two new players.
   该足球队已签约聘用了两名新队员。
4. She signed her name to the document.
   她在文件上签了名。
5. Dark clouds are a sign of rain or snow.
   乌云是雨或雪将至的预兆。