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Definition mask in British English

mask noun

[countable] noun
/mɑːsk/
1

something that you wear to cover part or all of your face in order to protect it from something harmful such as poisonous gas, bacteria, or smoke

Synonyms and related words
1.1

something that you wear to cover part or all of your face in order to hide who you are or for decoration

Example

They were robbed by a man wearing a ski mask.

Example

a brightly coloured carnival mask

Synonyms and related words
2

an expression on someone's face that hides their true feelings, thoughts, or character

Example

His features hardened into an expressionless mask.

Example

He let the mask slip a little as his trust grew.

3

a wet substance used for cleaning your skin that you put on your face and allow to dry before removing it

Synonyms and related words
Definition mask in British English