companion

  1. Noun.  A friend, acquaintance, or partner; someone with whom one spends time or keeps company.
  2. Noun.  (dated) A person employed to accompany or travel with another.
  3. Noun.  (nautical) The framework on the quarterdeck of a sailing ship through which daylight entered the cabins below.
  4. Noun.  (nautical) The covering of a hatchway on an upper deck which leads to the companionway; the stairs themselves.
  5. Noun.  (topology) A knot in whose neighborhood another, specified, knot meets every meridian disk.
  6. Noun.  (figuratively) A thing or phenomenon that is closely associated with another thing, phenomenon, or person.
  7. Noun.  (astronomy) A celestial object that is associated with another.

This is an unmodified, but possibly outdated, definition from Wiktionary and used here under the Creative Commons license. Wiktionary is a great resource. If you like it too, please donate to Wikimedia.

This entry was last updated on RefTopia from its source on 3/20/2012.