(uncountable) The act of associating.

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

(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.

(object-oriented programming) Relationship between classes of objects that allows one object instance to cause another to perform an action on its behalf.

(Philippines, Chinese Filipino) A benevolent overseas Chinese organization of popular origin for overseas Chinese individuals with the same surname or trade or business.