昵称的英文：
nickname
pet name

参考例句：

William,familiarly known as Billy
威廉,昵称比利.

Tom is a nickname for Thomas.
汤姆是汤马斯的昵称。

Maggie is a diminutive of Margaret.
玛吉是玛格丽特的昵称。

Rob is a nickname for Robert.
罗勃是罗伯特的昵称。

He addressed her by her pet name.
他用她的昵称称呼她。

A name of endearment;a pet name.
爱称一种昵爱的称呼;昵称

Mail addressed using a Quickname will be sent to the Primary E-mail address.
使用昵称作为地址的邮件将被发送到首选电子邮件地址。

People liked his clay figurines very much and gave him the nickname of Clay Figurine Zhang.
老百姓都喜爱他的作品，亲切地送给他一个昵称:泥人张。

A person who is the object of deep or intense affection or attraction;beloved.Often used as a term of endearment.
爱人，意中人深切或强烈喜爱或吸引的对象;被爱者。经常用于昵称

nickname是什么意思：
n. 绰号；昵称
v. 给...起绰号

An object with that nickname exists. Please enter a new nickname.
此别名的对象已存在。请输入一个新的别名。

An entry with this nickname already exists.The nickname has not been changed.
已经存在此别名的条目。别名没有被更改。

Nicknames may only have letters and numbers in them. The nickname has not been changed.
别名中只能包含字母和数字。别名没有被更改。

Being called by a nickname is not usually uncomplimentary
被人起了绰号并不一定是不客气

She professed to hate her nickname.
她自称痛恨自己的外号。

pet是什么意思：
n. 宠物；宝贝
v. 宠爱；爱抚
adj. 宠物的；表示亲昵的

She went off in a pet.
她一生气就走了。

This store sells pet food.
这商店出售宠物食品。

They observed the behavior of their new pet.
他们观察他们新宠物的生活习性。

If they have an eye for fashion, pet owners can dress their pets in stylish clothes.
如果主人时髦的话，他们还会给自己的宠物穿上时髦的衣服。

Do you have any stinky brothers or pets?
你有臭兄弟和宠物吗？