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English definition of “guise”

guise

noun [U] uk   /ɡaɪz/ us  
the appearance of someone or something, especially when intended to deceive: The men who arrived in the guise of drug dealers were actually undercover police officers. The company has been accused of trying to sell their products under the guise of market research.Faking and pretending
(Definition of guise from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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