Association may refer to: *

Club (organization) A club is an voluntary association, association of people united by a common interest or goal. A service club, for example, exists for voluntary or charitable activities. There are clubs devoted to hobbies and sports, social activities clubs, po ...

, an association of two or more people united by a common interest or goal *

Trade association A trade association, also known as an industry trade group, business association, sector association or industry body, is an organization founded and funded by businesses that operate in a specific Industry (economics), industry. An industry tra ...

, an organization founded and funded by businesses that operate in a specific industry *

Voluntary association A voluntary group or union (also sometimes called a voluntary organization, common-interest association, association, or society) is a group of individuals who enter into an agreement, usually as volunteers, to form a body (or organization) to a ...

, a body formed by individuals to accomplish a purpose, usually as volunteers

Association in various fields of study

* Association (archaeology), the close relationship between objects or contexts. * Association (astronomy), combined or co-added group of astronomical exposures *

Association (chemistry) Dissociation in chemistry is a general process in which molecules (or ionic compounds such as salts, or complexes) separate or split into other things such as atoms, ions, or radicals, usually in a reversible manner. For instance, when an acid ...

* Association (ecology), a type of ecological community *

Genetic association Genetic association is when one or more genotypes within a population co-occur with a phenotypic trait more often than would be expected by chance occurrence. Studies of genetic association aim to test whether single-locus alleles or genotype f ...

, when one or more genotypes within a population co-occur *