chalk
/t͡ʃɔk/ noun A2- A soft, white, powdery limestone (calcium carbonate, CaCO₃). · chalk cliffs are not recommended for climbing
- A piece of chalk, or nowadays processed compressed gypsum (calcium sulfate, CaSO₄), that is used for drawing and for writing on a blackboard (chalkboard).
- Tailor's chalk.
- A white powdery substance used to prevent hands slipping from holds when climbing, or losing grip in weight-lifting or gymnastics, sometimes but not always limestone-chalk, often magnesium carbonate (MgCO₃). · when working out your next move, it's a good idea to get some more chalk from the bag
- A platoon-sized group of airborne soldiers.
- The favorite in a sporting event.
- The prediction that there will be no upsets, and the favored competitor will win.
Plural chalks
Phrasal verbs and expressions
From the library
At once the cap changed to a slate, on which was written in big, white chalk marks:
These woods are locally supposed to be the extreme fringe of the great Weald forest, which thins away until it reaches the northern chalk downs.
Phillips took a chalk crayon and wrote on the blackboard above her head.
They say he could chalk his billiard-cue with his knuckles.
Other matches
Learn chalk in real texts
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