tasting vs relishing

tasting and relishing both are nouns.

Word	Noun	Adjective	Verb	Adverb
tasting	Yes	No	No	No
relishing	Yes	No	No	No

As nouns, tasting and relishing are synonyms defined as:

tasting and relishing: taking a small amount into the mouth to test its quality

Other synonyms of tasting include degustation, savoring, savouring.

tasting (noun)	relishing (noun)
a kind of sensing; distinguishing substances by means of the taste buds	taking a small amount into the mouth to test its quality
taking a small amount into the mouth to test its quality
a small amount (especially of food or wine)