spread out vs volley

spread out is not a noun while volley is a noun.

Word	Noun	Adjective	Verb	Adverb
spread out	No	No	Yes	No
volley	Yes	No	Yes	No

As verbs, volley is a hyponym of spread out; that is, volley is a word with a more specific, narrower meaning than spread out:

Other hyponyms of spread out include aerosolise, aerosolize, break.

spread out (noun)	volley (noun)
	rapid simultaneous discharge of firearms
	a tennis return made by hitting the ball before it bounces

spread out (verb)	volley (verb)
set out or stretch in a line, succession, or series	utter rapidly
spread out or open from a closed or folded state	make a volley
move outward	discharge in, or as if in, a volley
extend in one or more directions	hit before it touches the ground
move away from each other	be dispersed in a volley
turn outward
strew or distribute over an area