dispersion vs spread

dispersion and spread both are nouns.

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

As nouns, spread is a hypernym of dispersion; that is, spread is a word with a broader meaning than dispersion:

Other hypernyms of dispersion include spreading.

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

dispersion: the spatial or geographic property of being scattered about over a range, area, or volume
spread: a haphazard distribution in all directions

As nouns, spread is a hypernym of dispersion; that is, spread is a word with a broader meaning than dispersion:

dispersion: spreading widely or driving off
spread: process or result of distributing or extending over a wide expanse of space

Other hypernyms of dispersion include spreading.

dispersion (noun)	spread (noun)
the act of dispersing or diffusing something	act of extending over a wider scope or expanse of space or time
the spatial or geographic property of being scattered about over a range, area, or volume	decorative cover for a bed
spreading widely or driving off	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

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

dispersion (verb)	spread (verb)
	cause to become widely known
	become widely known and passed on
	distribute or disperse widely
	spread out or open from a closed or folded state
	become distributed or widespread
	cover by spreading something over
	distribute over a surface in a layer
	strew or distribute over an area
	move outward
	spread across or over