plural chalks
1
: a type of soft, light-colored rock
Note: Chalk is a kind of limestone.
2
a
: a substance that is made into white or colored sticks and used for writing or drawing
The teacher handed her a piece of chalk and asked her to write the answer on the chalkboard.
He put chalk marks on the stage to show the actors where they should stand.
a chalk drawing [=a drawing done with chalk]
b
: a piece of chalk
They drew pictures on the sidewalk with colored chalks.
chalks; chalked; chalking
1
: to write or draw (something) with chalk
She chalked a message on the side of the barn.
2
: to mark (something) with chalk
He chalked the stage to show the actors where they should stand.
Cite this Entry
“Chalk.” Merriam-Webster.com Simple Definition, Merriam-Webster, https://www.merriam-webster.com/simple/chalk. Accessed 21 Jun. 2026.
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