companionnoun/kəmˈpæn.jən/

• 1

  A friend, acquaintance or partner; someone with whom one spends time or accompanies

  • His dog has been his trusted companion for the last five years.
  • Heere are your Sonnes againe, and I muſt looſe / Two of the ſweet’ſt Companions in the World.
• 2

  datedA person employed to accompany or travel with another.

• 3

  nauticaltransportThe framework on the quarterdeck of a sailing ship through which daylight entered the cabins below.

• 4

  nauticaltransportThe covering of a hatchway on an upper deck which leads to the companionway; the stairs themselves.

• 5

  mathematicssciencestopologyA knot in whose neighborhood another, specified knot meets every meridian disk.

• 6

  A person, thing or phenomenon that is closely associated with another person, thing or phenomenon.

• 7

  An appended source of media or information, designed to be used in conjunction with and to enhance the main material.

  • The companion guide gives an in-depth analysis of this particular translation.
• 8

  astronomynatural-sciencesA celestial object that is associated with another.

companionverb/kəmˈpæn.jən/

• 1

  obsoleteTo be a companion to; to attend on; to accompany.

  • we had better turn south quickly and compare the elements of education which formed , and of creation which companioned , Salvator .
• 2

  obsoleteTo qualify as a companion; to make equal.

  • Finde me to marrie me with Octauius Cæſar, and companion me with my Miſtris.