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English definition of “companion”

companion

noun [C] uk   /kəmˈpæn.jən/ us  

companion noun [C] (PERSON)

B2 a person you spend a lot of time with often because you are friends or because you are travelling together: The dog has been her constant companion these past ten years. a travelling companion in the past, a young woman who was paid to care for and provide friendship for an old or ill woman, especially while she was travelling

companion noun [C] (OBJECT)

old-fashioned either of two matching objects: I've still got one of the candlesticks but I've lost its companion.

companion noun [C] (BOOK)

used in the title of a type of book that gives you information on a particular subject or tells you how to do something: the Music Lover's Companion
(Definition of companion from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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