going away vs dispatch

going away and dispatch both are nouns.

Word	Noun	Adjective	Verb	Adverb
going away	Yes	No	No	No
dispatch	Yes	No	Yes	No

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

going away (noun)	dispatch (noun)
the act of departing	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)

going away (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