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English definition of “mask”

mask

noun [C] (FACE COVER)    /mɑːsk/ US  /mæsk/
B2 a covering for all or part of the face that protects , hides , or decorates the person wearing it: a gas mask a surgical mask The bank robbers wore masks throughout the raid .Things worn to cover the head, face or neck
(Definition of mask noun (FACE COVER) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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