manducate vs munch

manducate is not a noun while munch is a noun.

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

As verbs, munch is a hyponym of manducate; that is, munch is a word with a more specific, narrower meaning than manducate:

Other hyponyms of manducate include champ, chomp, champ, gum, mumble, chaw, crunch, gnaw.

manducate (noun)	munch (noun)
	a large bite

manducate (verb)	munch (verb)
chew (food); to bite and grind with the teeth	crush with the teeth, making a grinding sound