tag
noun uk/tæɡ/ us/tæɡ/
(SMALL PART)
[ C ]标签，标牌
a small piece of paper, cloth, or metal, on which there is information, tied or stuck onto something larger
a price tag 价格标签
(GAME)
[ U ]（儿童玩的）捉人游戏
a game played by two or more children in which one child chases the others and tries to touch one of them. This child then becomes the one who does the chasing.
(GRAMMAR)
[ C ] language specialized附加强调语;附加疑问句
a phrase such as "he is" or "isn't it?", added on to a sentence for emphasis, or to turn it into a question, usually to get agreement or to check information
(MARK)
[ C ]（一种代表作者的）签名涂鸦
a type of graffiti (= words and pictures drawn in public places on walls, etc.) that shows who has drawn it and that represents a signature
The tag is the most commonly seen graffiti in any urban setting. 在都市涂鸦中，签名涂鸦是最常见的。
tag
verb [ T ] uk/tæɡ/ us/tæɡ/ -gg-
(SMALL PART)
给…贴上标签，给…挂上标牌
to put a tag on something
(COMPUTING)
computing specialized（计算机中以标识符）标示，标记
to mark computer information to be processed in a particular way
Phrasal verbs
tag along （通常指未经邀请）跟随，尾随
to go somewhere with a person or group, usually when they have not asked you to go with them
I don't know her, she just tagged along with us. 我不认识她，她只是跟着我们。
tag something on 添加，附加
to add something to what you have said or written at a later time
Tag on a couple of paragraphs about recent events. 添加几段最近发生的事。