permutation
Word family nounpermutabilitypermutationadjectivepermutablepermutationalverbpermutate
per·mu·ta·tion /ˌpɜːmjʊˈteɪʃən $ ˌpɜːr-/ noun [countableC] ORDER/SEQUENCEone of the different ways in which a number of things can be arranged 排列方式 a sandwich shop that sells every possible permutation of meat and bread 出售各种肉类和面包组合的三明治店
→ combination Origin permutation (1300-1400) Old French permutacion, from Latin, from permutare “to change completely”