munch vs crunch

munch and crunch both are nouns.

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

As verbs, munch and crunch are synonyms defined as:

munch (noun)	crunch (noun)
a large bite	the act of crushing
	the sound of something crunching
	a critical situation that arises because of a shortage (as a shortage of time or money or resources)

munch (verb)	crunch (verb)
crush with the teeth, making a grinding sound	reduce to small pieces or particles by pounding or abrading
	make a crushing noise
	crush with the teeth, making a grinding sound
	press or grind with a crushing noise