1. plural of chalk; white or colored sticks of soft limestone used for writing or drawing

1. third person singular present of chalk; writes or draws with chalk
2. attributes or ascribes something to a cause
Usage: used with ‘up to’

Examples

• The teacher bought new chalks for the blackboard.
• She chalks the scores on the board after each game.
• He chalks his success up to hard work.
• The box contains colored chalks for art class.
• She always chalks her name on the sidewalk.
• I chalk up my mistakes to inexperience.
• The store sells white and colored chalks.