(social sciences) A research methodology used in some social sciences to gain familiarity with a group of individuals and their practices through an intensive involvement, usually over an extended period of time.

(law) An individual or collective whose rights have been violated and who is entitled to commence a lawsuit; victim.

(historical, US) A type of sex party in 1920s flapper culture.

A localized electrical breakdown of a small portion of a solid or fluid electrical insulator when being applied to high voltage.

(slang, dated) A social meeting of women for tea and gossip.

(chiefly Canada) An outdoor gathering held in a wooded area or a field, especially one attended primarily by young people at which alcohol is drunk.

Alternative form of nonparticipation

Synonym of paper bag party

(US, historical) A (possibly apocryphal) social event to which only those whose skin color passed the "brown bag test" were admitted.

(US, chiefly historical) A social gathering at which singing and dancing games are played, frequently held in the 19th and early 20th centuries in the American South and Midwest.