In the long-running BBC television science fiction programme Doctor Who and related works, the term "companion" refers to a character who travels with, or shares the adventures of the Doctor. In most Doctor Who stories, the primary companion acts as an audience surrogate. He or she provides the lens through which the viewer is introduced to the series. The companion character often furthers the story by asking questions and getting into trouble, or by helping, rescuing or challenging the Doctor. This designation is applied to a character by the show's producers, and appears in the BBC's promotional material and off-screen fictional ...

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  1. A friend, acquaintance, or partner; someone with whom one spends time or keeps company
    His dog has been his trusted companion for the last five years.
  2. A person employed to accompany or travel with another.
  3. The framework on the quarterdeck of a sailing ship through which daylight entered the cabins below.
  4. The covering of a hatchway on an upper deck which leads to the companionway; the stairs themselves.
  5. A knot in whose neighborhood another, specified knot meets every meridian disk.
  6. A thing or phenomenon that is closely associated with another thing, phenomenon, or person.
  7. A celestial object that is associated with another.
  8. A knight of the lowest rank in certain orders.
    a companion of the Bath
  9. A fellow.


  1. To be a companion to; to attend on; to accompany.
  2. To qualify as a companion; to make equal.

The above text is a snippet from Wiktionary: companion
and as such is available under the Creative Commons Attribution/Share-Alike License.

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