Definitions
1.nounA soft, white, powdery limestone.
2.nounA piece of chalk, or nowadays processed compressed gypsum, that is used for drawing and for writing on a blackboard.
3.nounTailor's chalk.
4.nounA white powdery substance used to prevent hands slipping from holds when climbing, sometimes but not always limestone-chalk.
5.nounA platoon-sized group of airborne soldiers.
6.noun(horseracing) The favorite in a sporting event.
7.nounThe prediction that there will be no upsets, and the favored competitor will win.
8.verbTo apply chalk to anything, such as the tip of a billiard cue.
9.verbTo record something, as on a blackboard, using chalk.
10.verbTo use powdered chalk to mark the lines on a playing field.
11.verbTo record a score or event, as if on a chalkboard.
12.verbTo manure (land) with chalk.
13.verbTo make white, as if with chalk; to make pale; to bleach.