propagate vs spread

propagate is not a noun while spread is a noun.

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

As verbs, propagate and spread are synonyms defined as:

As verbs, spread is a hypernym of propagate; that is, spread is a word with a broader meaning than propagate:

Other hypernyms of propagate include distribute.

As verbs, propagate and spread are synonyms defined as:

propagate (noun)	spread (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

propagate (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

propagate (verb)	spread (verb)
multiply sexually or asexually	cause to become widely known
cause to propagate, as by grafting or layering	become widely known and passed on
cause to become widely known	distribute or disperse widely
transmit	spread out or open from a closed or folded state
transmit or cause to broaden or spread	become distributed or widespread
become distributed or widespread	cover by spreading something over
travel through the air	distribute over a surface in a layer
transmit from one generation to the next	strew or distribute over an area
	move outward
	spread across or over