Definition of commutation
2
: replacement;
specifically
: a substitution of one form of payment or charge for another
- a commutation by money payment for the exacted service
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
- … a ridge of hills makes daily commutation to San Francisco arduous.
- —The New York Times
5
: the action of commutating
