companion - definition and synonyms

noun [countable] 

Your browser doesn’t support HTML5 audio

  1. 1
    someone who is with you

    a travelling companion

    1. a.
      a friend or pet that you spend a lot of time with

      The dog soon became my constant companion.

    2. b.
      someone who is paid to live or travel with another person
  2. 2
    one of a pair or group of things that are related or can be used together

    Have you seen the companion to this glove?

    A cookery book will be published as a companion volume to his television series.

  3. 3
    used in the titles of books for showing that they are about a particular subject

    a copy of the Feminist Companion to English Literature