screak vs hollo

screak is not a noun while hollo is a noun.

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

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

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

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

screak (verb)	hollo (verb)
utter a harsh abrupt scream	utter a sudden loud cry
make a high-pitched, screeching noise	cry hollo
	encourage somebody by crying hollo