hushing vs noise

hushing and noise both are nouns.

Word	Noun	Adjective	Verb	Adverb
hushing	Yes	No	No	No
noise	Yes	No	Yes	No

As nouns, noise is a hypernym of hushing; that is, noise is a word with a broader meaning than hushing:

hushing (noun)	noise (noun)
a fricative sound (especially as an expression of disapproval)	the quality of lacking any predictable order or plan
	incomprehensibility resulting from irrelevant information or meaningless facts or remarks
	the auditory experience of sound that lacks musical quality; sound that is a disagreeable auditory experience
	a loud outcry of protest or complaint
	sound of any kind (especially unintelligible or dissonant sound)
	electrical or acoustic activity that can disturb communication

hushing (verb)	noise (verb)
	emit a noise