spread out vs splay

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

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

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

Other hyponyms of spread out include divaricate, exfoliate, grass, butterfly, uncross.

As verbs, spread out and splay are synonyms defined as:

Other synonyms of spread out include rotate, turn out.

spread out (noun)	splay (noun)
	an outward bevel around a door or window that makes it seem larger

spread out (adjective)	splay (adjective)
	turned outward in an ungainly manner

spread out (verb)	splay (verb)
set out or stretch in a line, succession, or series	move out of position
spread out or open from a closed or folded state	turn outward
move outward	spread open or apart
extend in one or more directions
move away from each other
turn outward
strew or distribute over an area