noun

1. A small label.

2. A children's chasing game in which one player (known as "it") attempts to touch another, who then becomes "it".

3. A skin tag, an excrescence of skin.

Synonyms: dialogue tag, speech tag, tag line

verb

1. To label (something).

2. (graffiti) To mark (something) with one’s tag.

3. To remove dung tags from a sheep.

   “Regularly tag the rear ends of your sheep.”