rallying cry vs vociferation

rallying cry and vociferation both are nouns.

Word	Noun	Adjective	Verb	Adverb
rallying cry	Yes	No	No	No
vociferation	Yes	No	No	No

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

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

rallying cry (noun)	vociferation (noun)
a slogan used to rally support for a cause	a loud utterance; often in protest or opposition
a yell intended to rally a group of soldiers in battle