1.Definition: act of changing the lineal order of objects in a group

Category: General

2.Definition: an event in which one thing is substituted for another

Related Noun(s):replacement, substitution, switch, transposition

Category: General

3.Definition: complete change in character or condition

"The permutations...taking place in the physical world"

Category: General

4.Definition: the act of changing the arrangement of a given number of elements

Category: General