(n): several things grouped together or considered as a whole
(n): a coordinated sequence of chess moves
(n): serial arrangement in which things follow in logical order or a recurrent pattern
(n): a sequence of numbers or letters that opens a combination lock
(n): serial arrangement in which things follow in logical order or a recurrent pattern
(n): a group of people (often temporary) having a common purpose
(n): an organization regarded as part of a larger social group
(n): an alliance of people or corporations or countries for a special purpose (formerly to achieve some antisocial end but now for general political or economic purposes)
(n): an organization of people (or countries) involved in a pact or treaty
(n): the act of arranging elements into specified groups without regard to order
(n): (mathematics) calculation by mathematical methods
(n): the act of combining things to form a new whole
(n): the act of changing the unity or wholeness of something
"A one-piece undergarment combining the corset cover with drawers or petticoat, or, as in the union suit, consisting of undervest and drawers."