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Pronunciation of 

treacherous

view main entry for treacherous adjective  /ˈtretʃərəs/
British English pronunciation: treacherousClick to listen to the pronunciation of treacherous

derived word

treacherously

adverb
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normcore

a fashion trend in which people intentionally wear ordinary, inexpensive, widely-available clothing

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Open Dictionary

boutonnière

a flower or small bunch of flowers worn on the lapel of a jacket on special occasions

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