rapidness vs dispatch

rapidness and dispatch both are nouns.

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

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

rapidness (noun)	dispatch (noun)
a rate that is rapid	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)

rapidness (verb)	dispatch (verb)
	kill without delay
	send away towards a designated goal
	complete or carry out
	kill intentionally and with premeditation
	dispose of rapidly and without delay and efficiently