strafe vs onset

strafe and onset both are nouns.

Word	Noun	Adjective	Verb	Adverb
strafe	Yes	No	Yes	No
onset	Yes	No	No	No

As nouns, onset is a hypernym of strafe; that is, onset is a word with a broader meaning than strafe:

strafe: an attack of machine-gun fire or cannon fire from a low flying airplane
onset: (military) an offensive against an enemy (using weapons)

Other hypernyms of strafe include attack, onrush, onslaught.

strafe (noun)	onset (noun)
an attack of machine-gun fire or cannon fire from a low flying airplane	(military) an offensive against an enemy (using weapons)
	the beginning or early stages

strafe (verb)	onset (verb)
attack with machine guns or cannon fire from a low-flying plane