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Discover LudwigThe phrase "a chalk" is not correct in standard English usage.
The correct term is "chalk" when referring to the substance in general, as it is an uncountable noun.
Example: "I need chalk to write on the blackboard."
Alternatives: "some chalk" or "a piece of chalk".
Exact(55)
Is there a chalk stream near you?
A chalk board announced: "Cash on Delivery".
Chandler on the sidewalk making a chalk drawing.
There's a chalk board with the menu for that day.
The pigment employed is usually a chalk or clay containing some form of iron oxide.
"We are in a chalk landscape – the flint in these fields is compressed chalk.
On the slightly lower level is a blackboard covered in a chalk scrawl of maths equations.
Similar(4)
I was meant to wear a chalk-stripe suit, because I'm tall and thin.
Nacre boasts a remarkable mechanical property profile, despite being composed 95% of a chalk-like mineral.
It was evaluated during summer in a chalk-stream river catchment in central southern England.
I feel like a chalk-outline of a body someone dragged their feet through.
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CEO of Professional Science Editing for Scientists @ prosciediting.com