A combination is a mathematical collection of things in a context where their specific order is irrelevant.
Combination, combinations, or combo may also refer to:
Combination (chess), a relatively long sequence of chess moves, involving temporary loss of materials Combination (jump), in horseback riding Combination bus, a purpose-built truck with a "passenger container" Combination company, in the late 19th century, a touring theater company that performed only one play Combination Game, a style of association football based around teamwork and cooperation Combination meal, typically includes food items and a beverage Combination tone, a psychoacoustic phenomenon Combinations (finance), the simultaneous buying or selling of one or more options that differ in one or more of the options' variables Combinations (album), 2007 album by Eisley Striking combination, several strikes in a row in combat sports The Combination (film), 2009 Australian drama, directed by David Field The Combination, an early English football league, 1888–89 and 1890–1911
See also Combination car (disambiguation) Combine (disambiguation) Combined (disambiguation) Combo (disambiguation) Motorcycle combination, sidecar Original combination Combination Act 1799