respite vs relief

respite and relief both are nouns.

Word	Noun	Adjective	Verb	Adverb
respite	Yes	No	Yes	No
relief	Yes	No	No	No

As nouns, relief is a hypernym of respite; that is, relief is a word with a broader meaning than respite:

respite: a (temporary) relief from harm or discomfort
relief: the condition of being comfortable or relieved (especially after being relieved of distress)

Other hypernyms of respite include ease.

As nouns, respite and relief are synonyms defined as:

Other synonyms of respite include rest, rest period.

respite (noun)	relief (noun)
a pause from doing something (as work)	aid for the aged or indigent or handicapped
the act of reprieving; postponing or remitting punishment	the act of reducing something unpleasant (as pain or annoyance)
an interruption in the intensity or amount of something	assistance in time of difficulty
a (temporary) relief from harm or discomfort	the act of freeing a city or town that has been besieged
a pause for relaxation	sculpture consisting of shapes carved on a surface so as to stand out from the surrounding background
	a change for the better
	the feeling that comes when something burdensome is removed or reduced
	someone who takes the place of another (as when things get dangerous or difficult)
	(law) redress awarded by a court
	the condition of being comfortable or relieved (especially after being relieved of distress)
	a pause for relaxation

respite (verb)	relief (verb)
postpone the punishment of a convicted criminal, such as an execution