Noun

(en noun)

The act of associating.

The state of being associated; a connection to or an affiliation with something.

* {{quote-magazine, year=2012, month=March-April

, author=(Jan Sapp) , title=Race Finished , volume=100, issue=2, page=164 , magazine=(American Scientist) citation , passage=Few concepts are as emotionally charged as that of race. The word conjures up a mixture of associations —culture, ethnicity, genetics, subjugation, exclusion and persecution. But is the tragic history of efforts to define groups of people by race really a matter of the misuse of science, the abuse of a valid biological concept?}}

(statistics) Any relationship between two measured quantities that renders them statistically dependent (but not necessarily causal or a correlation).

A group of persons associated for a common purpose; an organization; society.

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)