halloo vs cry

halloo and cry both are nouns.

Word	Noun	Adjective	Verb	Adverb
halloo	Yes	No	Yes	No
cry	Yes	No	Yes	No

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

Other hypernyms of halloo include call, outcry, shout, vociferation, yell.

As verbs, cry is a hypernym of halloo; that is, cry is a word with a broader meaning than halloo:

Other hypernyms of halloo include call, holler, hollo, scream, shout, shout out, squall, yell.

halloo (noun)	cry (noun)
a shout to attract attention	a loud utterance; often in protest or opposition
	a fit of weeping
	a slogan used to rally support for a cause
	a loud utterance of emotion (especially when inarticulate)
	the characteristic utterance of an animal

halloo (verb)	cry (verb)
shout `halloo', as when greeting someone or attracting attention	shed tears because of sadness, rage, or pain
urge on with shouts	bring into a particular state by crying
	utter a sudden loud cry
	proclaim or announce in public
	utter a characteristic sound
	utter aloud; often with surprise, horror, or joy
	demand immediate action