combination (noun)
1: a collection of things that have been combined; an assemblage of separate parts or qualities
2: a coordinated sequence of chess moves
3: a sequence of numbers or letters that opens a combination lock; "he forgot the combination to the safe"
4: a group of people (often temporary) having a common purpose; "they were a winning combination"
5: 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)
6: the act of arranging elements into specified groups without regard to order
7: the act of combining things to form a new whole [syn: combining, compounding]