Noun

(en noun)

Connection or association; the condition of being related.

* {{quote-magazine, date=2013-08-10, volume=408, issue=8848, magazine=(The Economist), author=Schumpeter

, title= Cronies and capitols , passage=Policing the relationship between government and business in a free society is difficult. Businesspeople have every right to lobby governments, and civil servants to take jobs in the private sector.}}

Kinship; being related by blood or marriage.

A romantic or sexual involvement.

A way in which two or more people behave and are involved with each other

* {{quote-news, year=2012, date=August 5, author=Nathan Rabin

, title= TV: Review: THE SIMPSONS (CLASSIC): “I Love Lisa” (season 4, episode 15; originally aired 02/11/1993) , passage=“I Love Lisa” opens with one of my favorite underappreciated running jokes from The Simpsons : the passive-aggressive, quietly contentious relationship of radio jocks Bill and Marty, whose mindless happy talk regularly gives way to charged exchanges that betray the simmering resentment and disappointment perpetually lingering just under the surface of their relationship .}}

(music) The level or degree of affinity between keys, chords and tones.

Noun

(en noun)

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.

* Shakespeare

Here are your sons again; and I must lose / Two of the sweetest companions in the world.

(dated) A person employed to accompany or travel with another.

(nautical) The framework on the quarterdeck of a sailing ship through which daylight entered the cabins below.

(nautical) The covering of a hatchway on an upper deck which leads to the companionway; the stairs themselves.

(topology) A knot in whose neighborhood another, specified knot meets every meridian disk.

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

(astronomy) A celestial object that is associated with another.

A knight of the lowest rank in certain orders.

a companion of the Bath

(obsolete, derogatory) A fellow; a rogue.

* 1599 , , III. i. 111:

and let us knog our / prains together to be revenge on this same scald, scurvy, / cogging companion ,