screech vs vociferation

screech and vociferation both are nouns.

Word	Noun	Adjective	Verb	Adverb
screech	Yes	No	Yes	No
vociferation	Yes	No	No	No

As nouns, vociferation is a hypernym of screech; that is, vociferation is a word with a broader meaning than screech:

Other hypernyms of screech include call, cry, outcry, shout, yell.

screech (noun)	vociferation (noun)
sharp piercing cry	a loud utterance; often in protest or opposition
a high-pitched noise resembling a human cry

screech (verb)	vociferation (verb)
utter a harsh abrupt scream
make a high-pitched, screeching noise