Meaning of COMMUTATION in English

COMMUTATION

[com.mu.ta.tion] n [ME, fr. MF, fr. L commutation-, commutatio, fr. commutare] (15c) 1: exchange, trade

2: replacement; specif: a substitution of one form of payment or charge for another

3: a change of a legal penalty or punishment to a lesser one

4: an act or process of commuting

5: the action of commutating

Merriam-Webster English vocab.      Английский словарь Merriam Webster.