cud vs wad

cud and wad both are nouns.

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

As nouns, cud and wad are synonyms defined as:

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

cud (noun)	wad (noun)
a wad of something chewable as tobacco	a wad of something chewable as tobacco
food of a ruminant regurgitated to be chewed again	(often followed by `of') a large number or amount or extent
	a small mass of soft material

cud (verb)	wad (verb)
	crowd or pack to capacity
	compress into a wad