fulfill vs dispatch

fulfill is not a noun while dispatch is a noun.

Word	Noun	Adjective	Verb	Adverb
fulfill	No	No	Yes	No
dispatch	Yes	No	Yes	No

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

Other hyponyms of fulfill include get over, run, consummate, consummate, do, perform, complete, discharge.

fulfill (noun)	dispatch (noun)
	the act of sending off something
	killing a person or animal
	the property of being prompt and efficient
	an official report (usually sent in haste)

fulfill (verb)	dispatch (verb)
fill, satisfy or meet a want or need or condition or restriction	kill without delay
put in effect	send away towards a designated goal
meet the requirements or expectations of	complete or carry out
	kill intentionally and with premeditation
	dispose of rapidly and without delay and efficiently