1. present participle of chalk; marking or writing with chalk
2. covering or treating with chalk or a chalk-like substance

1. the action of marking with chalk
2. a chalky coating or residue

Examples

• The teacher was chalking equations on the blackboard.
• She noticed chalking on her car’s paint after the storm.
• The gymnast was chalking her hands before the routine.
• The old paint showed signs of chalking in the sun.
• He spent the morning chalking the baseball field lines.
• The chalking on the sidewalk washed away in the rain.