masticate vs champ

masticate is not a noun while champ is a noun.

Word	Noun	Adjective	Verb	Adverb
masticate	No	No	Yes	No
champ	Yes	No	Yes	No

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

Other hyponyms of masticate include chomp, gum, mumble, chaw, crunch, munch, gnaw.

masticate (noun)	champ (noun)
	someone who has won first place in a competition

masticate (verb)	champ (verb)
chew (food); to bite and grind with the teeth	chew noisily or vigorously
grind and knead	chafe at the bit, like horses