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companion

noun [C] (OBJECT)
 
 
/kəmˈpæn.jən/ old-fashioned

Definition

either of two matching objects: I've still got one of the candlesticks but I've lost its companion.Groups of things according to number
(Definition of companion noun (OBJECT) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“companion” in other dictionaries

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