tag tag /ˈtæg/

noun

1. () A label written or printed on paper, cardboard, or plastic that is attached to something to indicate its owner, nature, price, etc.  ( ticket , tag )
   a label written or printed on paper, cardboard, or plastic that is attached to something to indicate its owner, nature, price, etc.
   
2. (sports) the act of touching a player in a game (which changes their status in the game)  ( tag )
   (sports) the act of touching a player in a game (which changes their status in the game)
   
3. A game in which one child chases the others; the one who is caught becomes the next chaser  ( tag , tig [British] )
   a game in which one child chases the others; the one who is caught becomes the next chaser
    The kids ran around the playground, playing tag and giggling whenever someone was caught.
   The kids ran around the playground, playing tag and giggling whenever someone was caught.
   
   
4. A small piece of cloth or paper  ( shred , tag , tag end , rag , tatter )
   a small piece of cloth or paper
     She used an old rag to clean the dusty shelves.
   She used an old rag to clean the dusty shelves.
   
   
5. A label associated with something for the purpose of identification  ( tag )
   a label associated with something for the purpose of identification
    Semantic tags were attached in order to identify different meanings of the word
   semantic tags were attached in order to identify different meanings of the word
   

verb

1. () Attach a tag or label to  ( label , tag , mark )
   attach a tag or label to
    Label these bottles
   label these bottles
   
2. () Provide with a name or nickname  ( tag )
   provide with a name or nickname
   
3. () (baseball) touch a player while he is holding the ball  ( tag )
   (baseball) touch a player while he is holding the ball
   
4. (poetry) supply (blank verse or prose) with rhymes  ( tag )
   (poetry) supply (blank verse or prose) with rhymes
   
5. Go after with the intent to catch  ( chase after , give chase , tag , chase , dog , go after , tail , track , trail )
   go after with the intent to catch
    The policeman chased the mugger down the alley
   The policeman chased the mugger down the alley
    The dog chased the rabbit
   the dog chased the rabbit