Formation may refer to: Linguistics Back-formation, the process of creating a new lexeme by removing or affixes Word formation, the creation of a new word by adding affixes Mathematics and science Cave formation or speleothem, a secondary mineral deposit formed in a cave Class formation, a topological group acting on a module satisfying certain conditions Formation (group theory), a class of groups that is closed under some operations Formation constant, an equilibrium constant for the formation of a complex in solution Formation enthalpy, standard heat of formation of a compound Formation (group theory), a class of groups Formation (geology), a formally named rock stratum or geological unit Formation of rocks, how rocks are formed Formation and evolution of the Solar System, history of the Solar System Rock formation, an isolated, scenic, or spectacular surface rock outcrop Vegetation formation, a concept used to classify vegetation communities Military Formation flying, the disciplined flight of two or more aircraft under the command of a flight leader Formation (military), a high-level military organization Tactical formation, the arrangement or deployment of moving military forces Formation, an element in order of battle as a formal assembly of military personnel usually to receive the course of actions (operation order) or get deployed to operations Formation may be tactical or ceremonial Music Formation Records, a record label headed by DJ SS "Formation" (song), a song by American singer Beyoncé on her 2016 album Lemonade The Formation World Tour, concert tour by Beyoncé for her album Lemonade Religion Formations or Saṅkhāra, an important Buddhist concept Formation (Catholic), the personal preparation that the Catholic Church offers to people with a defined mission Sports Formation (association football), how team players are positioned on the pitch Formation (American football), the positions in which players line up before the start of a down Formation (bandy), how the players are positioned on the rink Formation dance, a style of ballroom dancing Formation finish, a staged motor-race finish in which multiple vehicles of the same team cross the finish line together Other Contract formation in law; an offer, acceptance, consideration, and a mutual intent to be bound Formation 8, an American venture capital firm in San Francisco, California Formation level, the native material underneath a constructed road, pavement or railway Formation of a coalition government, led by a formateur Formation (rail), British English for subgrade Formation water, water that is produced as a byproduct during