disseminate vs broadcast

disseminate is not a noun while broadcast is a noun.

Word	Noun	Adjective	Verb	Adverb
disseminate	No	No	Yes	No
broadcast	Yes	No	Yes	No

As verbs, disseminate and broadcast are synonyms defined as:

Other synonyms of disseminate include circularise, circularize, circulate, diffuse, disperse, distribute, pass around, propagate, spread.

disseminate (noun)	broadcast (noun)
	message that is transmitted by radio or television
	a radio or television show

disseminate (verb)	broadcast (verb)
cause to become widely known	cause to become widely known
	broadcast over the airwaves, as in radio or television
	sow over a wide area, especially by hand