billow vs wallow

billow and wallow both are nouns.

Word	Noun	Adjective	Verb	Adverb
billow	Yes	No	Yes	No
wallow	Yes	No	Yes	No

As verbs, billow and wallow are synonyms defined as:

billow (noun)	wallow (noun)
a large sea wave	an indolent or clumsy rolling about
	a puddle where animals go to wallow

billow (verb)	wallow (verb)
become inflated	delight greatly in
rise and move, as in waves or billows	devote oneself entirely to something; indulge in to an immoderate degree, usually with pleasure
rise up as if in waves	be ecstatic with joy
move with great difficulty	roll around
	rise up as if in waves