American Dictionary

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Definition crust in American English

crust noun

[countable/uncountable] noun
/krʌst/
1

the hard brown outer part of a loaf of bread

Example

Sparrows pecked at a crust of bread.

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2

a layer of cooked pastry that forms the outer part of a pie. The inner part is called the filling.

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3

the thick outer surface of the Earth or another planet

Example

Molten lava rose up from beneath the Earth's crust.

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Example

I washed the crust of make-up from my face.

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Definition crust in American English