wad vs cud

wad and cud both are nouns.

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

As nouns, wad and cud are synonyms defined as:

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

wad (noun)	cud (noun)
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	food of a ruminant regurgitated to be chewed again
a small mass of soft material

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