Open English Wordnet
Nouns
(n)combinationa collection of things that have been combined; an assemblage of separate parts or qualities
(n)combinationa sequence of numbers or letters that opens a combination lock“he forgot the combination to the safe”
(n)combinationa group of people (often temporary) having a common purpose“they were a winning combination”
(n)combinationan 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)