a label attached to someone or something for the purpose of identification or to give other information

he gave his pet a collar with a metal name tag

he took off his identity tag and inserted it into a machine

a small piece or part that is attached to a main body

a frequently repeated quotation or stock phrase

his writing is full of tags from the Bible and Shakespeare

attach a label to

mothers suspected that their babies had been wrongly tagged during an alarm at the hospital

add to something, especially as an afterthought or with no real connection

she meant to tag her question on at the end of her remarks

shear away ragged locks of wool from (sheep)

a children's game in which one child chases the others and anyone who is caught then becomes the pursuer

we began to play tag under the water

touch (someone being chased) in a game of tag