签名的英文：
sign
autograph
signature

参考例句：

Verify Signature
验证签名

Purchaser Signature
购买人签名

SubscriBe a will.
在遗嘱上签名

An initial signature
仅用姓名首字母的签名

The share certificate is signed by the chairman of the board of directors and sealed by the company.
股票由董事长签名，公司盖章。

Your signature exceeds the recommended 79 columns.
您的签名超过了建议的79列。

Provide a copy of the inside pages of your passport, including photo, signature and personal information.
c).附上护照内页所有申请人照片、签名、个人资料影本。

Beneath were sloping figures and at the foot a crooked signature with blind loops and a blot.
下面是歪歪拧拧的数字，末尾是弯弯曲曲的签名，带圈儿的笔划填得满满当当，另外还有一团墨水渍。

To endorse(another's signature), as for a loan.
签署（另一方的签名），例如为贷款而签名.

John's signature was an illegible scrawl.
约翰的签名潦草难辨。

sign是什么意思：
n. 迹象；预兆；记号，符号；手势；信号，暗号
v. 签名，签署；示意；打手势；用信号表示

This is a superscript sign.
这是个标在上方的符号。

This is a hopeful sign.
这是一个乐观的信号。

Scorpio is an Autumn Zodiac Sign（ as are the Signs of Libra and Sagittarius）。
天蝎：黄道十二宫的第八宫，每年10月23日前后太阳到这一宫。

autograph是什么意思：
n. 亲笔签名；手稿
v. 亲笔签名于，亲笔书写
adj. 亲笔的

The fans besieged the football player to get his autograph.
球迷围住这位足球队员以索取亲笔签名。

I autographed a copy of one of my books.
我在我的一本书上签了名。

sb.'s original handwriting or painting; script; an autograph
手迹

signature是什么意思：
n. 签字，签署；识别标志，特征

It shrinks the radar
它能缩小飞机在雷达屏幕上的信号特征。

This record will include a receiving signature.
这个记录同时还包括接受方的签字。

George was forced to forge a signature.
乔治被迫伪造签名。