spawn vs breed

spawn and breed both are nouns.

Word	Noun	Adjective	Verb	Adverb
spawn	Yes	No	Yes	No
breed	Yes	No	Yes	No

As verbs, spawn and breed are synonyms defined as:

Other synonyms of spawn include engender.

spawn (noun)	breed (noun)
the mass of eggs deposited by fish or amphibians or molluscs	a special type
	a special variety of domesticated animals within a species

spawn (verb)	breed (verb)
lay spawn	have young (animals) or reproduce (organisms)
call forth	copulate with a female, used especially of horses
	cause to procreate (animals)
	call forth