Noun commutation has 4 senses
  1. commutation, commuting - the travel of a commuter
    --1 is a kind of travel, traveling, travelling
    Derived form: verb commute2
  2. commutation - a warrant substituting a lesser punishment for a greater one
    --2 is a kind of
    warrant
    Derived forms: verb commute5, verb commute4
  3. commutation, re-sentencing - (law) the reduction in severity of a punishment imposed by law
    --3 is a kind of clemency, mercifulness, mercy
    Derived form: verb commute4
  4. substitution, exchange, commutation - the act of putting one thing or person in the place of another: "he sent Smith in for Jones but the substitution came too late to help"
    --4 is a kind of change
    --4 has particulars:
     replacement, replacing; subrogation; weaning, ablactation
    Derived forms: verb commute1, verb commute3
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