- 1[uncountable] a type of soft white stone chalk cliffs
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- 2[uncountable, countable] a substance similar to chalk made into white or colored sticks for writing or drawing a piece/stick of chalk drawing diagrams with chalk on the blackboard a box of colored chalks
used to say that someone should think of a failure as being something that they can learn from We lost a lot of money, but we just chalked it up to experience.See chalk in the Oxford Advanced Learner's Dictionary
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