grating vs rasping

grating and rasping both are nouns.

Word	Noun	Adjective	Verb	Adverb
grating	Yes	Yes	No	No
rasping	Yes	Yes	No	No

As adjectives, grating and rasping are synonyms defined as:

Other synonyms of grating include gravelly, raspy, rough, scratchy.

grating (noun)	rasping (noun)
a barrier that has parallel or crossed bars blocking a passage but admitting air	uttering in an irritated tone
a frame of iron bars to hold a fire
optical device consisting of a surface with many parallel grooves in it; disperses a beam of light (or other electromagnetic radiation) into its wavelengths to produce its spectrum

grating (adjective)	rasping (adjective)
unpleasantly harsh or grating in sound	unpleasantly harsh or grating in sound