dispatch vs execute

dispatch is a noun but execute is not a noun.

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

As verbs, execute is a hypernym of dispatch; that is, execute is a word with a broader meaning than dispatch:

Other hypernyms of dispatch include accomplish, action, carry out, carry through, fulfil, fulfill.

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

Other hyponyms of dispatch include burke.

dispatch (noun)	execute (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)

dispatch (verb)	execute (verb)
kill without delay	sign in the presence of witnesses
send away towards a designated goal	put in effect
complete or carry out	carry out or perform an action
kill intentionally and with premeditation	kill as a means of socially sanctioned punishment
dispose of rapidly and without delay and efficiently	murder in a planned fashion
	carry out the legalities of
	carry out a process or program, as on a computer or a machine