crunch vs grind

crunch and grind both are nouns.

Word	Noun	Adjective	Verb	Adverb
crunch	Yes	No	Yes	No
grind	Yes	No	Yes	No

As nouns, grind is a hyponym of crunch; that is, grind is a word with a more specific, narrower meaning than crunch:

Other hyponyms of crunch include mill, pulverisation, pulverization.

As verbs, crunch and grind are synonyms defined as:

crunch and grind: reduce to small pieces or particles by pounding or abrading

Other synonyms of crunch include bray, comminute, mash.

As verbs, crunch and grind are synonyms defined as:

Other synonyms of crunch include cranch, craunch.

crunch (noun)	grind (noun)
the act of crushing	the act of grinding to a powder or dust
the sound of something crunching	hard monotonous routine work
a critical situation that arises because of a shortage (as a shortage of time or money or resources)	the grade of particle fineness to which a substance is ground
	an insignificant student who is ridiculed as being affected or boringly studious

crunch (verb)	grind (verb)
reduce to small pieces or particles by pounding or abrading	reduce to small pieces or particles by pounding or abrading
make a crushing noise	make a grating or grinding sound by rubbing together
crush with the teeth, making a grinding sound	press or grind with a crushing noise
press or grind with a crushing noise	shape or form by grinding
	created by grinding
	dance by rotating the pelvis in an erotically suggestive way, often while in contact with one's partner such that the dancers' legs are interlaced
	work hard