murder vs execute

murder is a noun but execute is not a noun.

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

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

Other hyponyms of murder include burke.

murder (noun)	execute (noun)
unlawful premeditated killing of a human being by a human being

murder (verb)	execute (verb)
alter so as to make unrecognizable	sign in the presence of witnesses
kill intentionally and with premeditation	put in effect
	carry out or perform an action
	kill as a means of socially sanctioned punishment
	murder in a planned fashion
	carry out the legalities of
	carry out a process or program, as on a computer or a machine