yaup vs hollo

yaup is not a noun while hollo is a noun.

Word	Noun	Adjective	Verb	Adverb
yaup	No	No	Yes	No
hollo	Yes	No	Yes	No

As verbs, hollo is a hypernym of yaup; that is, hollo is a word with a broader meaning than yaup:

Other hypernyms of yaup include call, cry, holler, scream, shout, shout out, squall, yell.

yaup (noun)	hollo (noun)
	a very loud utterance (like the sound of an animal)

yaup (verb)	hollo (verb)
emit long loud cries	utter a sudden loud cry
	cry hollo
	encourage somebody by crying hollo