chew vs wad

chew and wad both are nouns.

Word	Noun	Adjective	Verb	Adverb
chew	Yes	No	Yes	No
wad	Yes	No	Yes	No

As nouns, chew and wad are synonyms defined as:

Other synonyms of chew include chaw, cud, plug, quid.

chew (noun)	wad (noun)
biting and grinding food in your mouth so it becomes soft enough to swallow	a wad of something chewable as tobacco
a wad of something chewable as tobacco	(often followed by `of') a large number or amount or extent
	a small mass of soft material

chew (verb)	wad (verb)
chew (food); to bite and grind with the teeth	crowd or pack to capacity
	compress into a wad