crevice vs cranny

crevice and cranny both are nouns.

Word	Noun	Adjective	Verb	Adverb
crevice	Yes	No	No	No
cranny	Yes	No	No	No

As nouns, crevice and cranny are synonyms defined as:

Other synonyms of crevice include chap, crack, fissure.

crevice (noun)	cranny (noun)
a long narrow cleft	a small opening or crevice (especially in a rock face or wall)
a long narrow depression in a surface	a long narrow depression in a surface