billow vs soar

billow and soar both are nouns.

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

As verbs, soar is a hypernym of billow; that is, soar is a word with a broader meaning than billow:

Other hypernyms of billow include soar up, soar upwards, surge, zoom.

billow (noun)	soar (noun)
a large sea wave	the act of rising upward into the air

billow (verb)	soar (verb)
become inflated	go or move upward
rise and move, as in waves or billows	fly upwards or high in the sky
rise up as if in waves	rise rapidly
move with great difficulty	fly a plane without an engine
	fly by means of a hang glider