lemon peel vs lemon rind

lemon peel and lemon rind both are nouns.

Word	Noun	Adjective	Verb	Adverb
lemon peel	Yes	No	No	No
lemon rind	Yes	No	No	No

As nouns, lemon peel and lemon rind are synonyms defined as:

lemon peel (noun)	lemon rind (noun)
the rind of a lemon	the rind of a lemon
strips of lemon peel cooked in sugar and coated with sugar