re-sentencing vs commutation

re-sentencing and commutation both are nouns.

Word	Noun	Adjective	Verb	Adverb
re-sentencing	Yes	No	No	No
commutation	Yes	No	No	No

As nouns, re-sentencing and commutation are synonyms defined as:

re-sentencing and commutation: (law) the reduction in severity of a punishment imposed by law

re-sentencing (noun)	commutation (noun)
(law) the reduction in severity of a punishment imposed by law	the travel of a commuter
	(law) the reduction in severity of a punishment imposed by law
	the act of putting one thing or person in the place of another:
	a warrant substituting a lesser punishment for a greater one