Meaning & use
Chalk
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A soft, white, porous sedimentary rock composed of calcium carbonate, often processed into sticks for writing or drawing.
See it in a sentence
The teacher wrote the homework assignment on the board with a piece of chalk.
Cliffs of white chalk rise dramatically along the southern coast of England.
A note on using this word
The famous White Cliffs of Dover are composed largely of natural chalk deposits formed from ancient marine organisms.
Words with a similar meaning
limestone
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Another way to use it
2. verb
To rub, mark, or coat something with chalk.
He chalked the tip of his pool cue before taking his shot.
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