Permutation1. (n.) The act of exchanging one thing for another; rearrangement of items in a group; mutual transference; interchange.
2. (n.) The arrangement of any determinate number of things, as units, objects, letters, etc., in all possible orders, one after the other; -- called also alternation. Cf. Combination, n., 4.
3. (n.) Any one of such possible arrangements.
4. (n.) Barter; exchange.
Thesaurus Entries
alteration, alternation, avatar, battledore and shuttlecock, catabolism, catalysis, commutation, consubstantiation, cooperation, counterchange, cross fire, displacement, exchange, give-and-take, heterotopia, innovation, interchange, intermutation, interplay, lex talionis, measure for measure, metabolism, metagenesis, metamorphism, metamorphosis, metastasis, metathesis, metempsychosis, modification, mutant, mutated form, mutation, mutual admiration, mutual support, mutual transfer, mutuality, novelty, quid pro quo, reciprocality, reciprocation, reciprocity, reincarnation, retaliation, something for something, sport, tit for tat, transanimation, transfiguration, transfigurement, transformation, transformism, translation, translocation, transmigration, transmogrification, transmutation, transposal, transposition, transubstantiation, vicissitude