n.
Pronunciation: ˌ käm-y ə - ' t ā -sh ə n, -yü-
Function: noun
Etymology: Middle English commutacion, from Anglo-French, from Latin commutation-, commutatio, from commutare
Date: 15th century
1 : EXCHANGE , TRADE
2 : REPLACEMENT specifically : a substitution of one form of payment or charge for another
3 : a change of a legal penalty or punishment to a lesser one < commutation of a death sentence>
4 : an act or process of commuting
5 : the action of commutating