noun
EXAMPLES FROM CORPUS
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Grant met them in a worn black frock coat and listened politely.
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He was a cheery chap who wore a frock coat and a soiled black felt hat which had seen better days.
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He, too, wore a black top hat, a black frock coat and black trousers.
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The more extreme designers have turned the jacket into a frock coat , emphasizing the Edwardian feel.