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

(uncountable) The state of being allied.

matrimonial alliances'''; an '''alliance between church and state, or between two countries

(countable) The act of allying or uniting.

(countable) A union or connection of interests between families, states, parties, etc., especially between families by marriage and states by compact, treaty, or league.

(countable) Any union resembling that of families or states; union by relationship in qualities; affinity.

* C. J. Smith

the alliance of the principles of the world with those of the gospel

* Mansel

the alliance between logic and metaphysics

(with the definite article) The persons or parties allied.

(Udall)