spread vs spread out

spread is a noun but spread out is not a noun.

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

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

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

Other synonyms of spread include open, unfold.

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

Other synonyms of spread include scatter.

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

Other synonyms of spread include diffuse, fan out.

spread (noun)	spread out (noun)
act of extending over a wider scope or expanse of space or time
decorative cover for a bed
farm consisting of a large tract of land along with facilities needed to raise livestock (especially cattle)
a haphazard distribution in all directions
the expansion of a person's girth (especially at middle age)
a conspicuous disparity or difference as between two figures
two facing pages of a book or other publication
process or result of distributing or extending over a wide expanse of space
a tasty mixture to be spread on bread or crackers or used in preparing other dishes
a meal that is well prepared and greatly enjoyed

spread (adjective)	spread out (adjective)
distributed or spread over a considerable extent
fully extended in width
prepared or arranged for a meal; especially having food set out

spread (verb)	spread out (verb)
cause to become widely known	set out or stretch in a line, succession, or series
become widely known and passed on	spread out or open from a closed or folded state
distribute or disperse widely	move outward
spread out or open from a closed or folded state	extend in one or more directions
become distributed or widespread	move away from each other
cover by spreading something over	turn outward
distribute over a surface in a layer	strew or distribute over an area
strew or distribute over an area
move outward
spread across or over