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1. An event in which one thing is substituted for another
   - substitution, transposition, replacement, switch
    
2. The act of changing the arrangement of a given number of elements
    
3. Complete change in character or condition
   "the permutations...taking place in the physical world"
    
4. Act of changing the lineal order of objects in a group

Derived forms: permutations

Type of: fluctuation, mathematical operation, mathematical process, operation, reordering, transformation, translation, variation

Encyclopedia: Permutation