permutation

Noun
  1. An event in which one thing is substituted for another (synset 107458361)
    "the replacement of lost blood by a transfusion of donor blood"
  2. The act of changing the arrangement of a given number of elements (synset 100871990)
  3. Complete change in character or condition (synset 100400031)
    "the permutations...taking place in the physical world"
  4. Act of changing the lineal order of objects in a group (synset 100340472)

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