Nouns

(n)tag, ticketa label written or printed on paper, cardboard, or plastic that is attached to something to indicate its owner, nature, price, etc.
(n)taga label associated with something for the purpose of identification“semantic tags were attached in order to identify different meanings of the word”
(n)rag, shred, tag, tag end, tattera small piece of cloth
(n)taga game in which one child chases the others; the one who is caught becomes the next chaser
(n)tag(sports) the act of touching a player in a game (which changes their status in the game)

Verbs

(v)tag, label, markattach a tag or label to“label these bottles”
(v)tagtouch a player while they are holding the ball
(v)tagprovide with a name or nickname
(v)chase, chase after, trail, tail, tag, give chase, dog, go after, trackgo after with the intent to catch“The policeman chased the mugger down the alley”, “the fox chased the rabbit”
(v)tagsupply (blank verse or prose) with rhymes