onus vs worry

onus and worry both are nouns.

Word	Noun	Adjective	Verb	Adverb
onus	Yes	No	No	No
worry	Yes	No	Yes	No

As nouns, worry is a hypernym of onus; that is, worry is a word with a broader meaning than onus:

Other hypernyms of onus include concern, headache, vexation.

onus (noun)	worry (noun)
an onerous or difficult concern	something or someone that causes anxiety; a source of unhappiness
	a strong feeling of anxiety

onus (verb)	worry (verb)
	lacerate by biting
	touch or rub constantly
	be worried, concerned, anxious, troubled, or uneasy
	disturb the peace of mind of; afflict with mental agitation or distress
	be concerned with
	be on the mind of