homicide vs murder

homicide and murder both are nouns.

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

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

Other hyponyms of homicide include honor killing, manslaughter, execution, slaying, shooting.

homicide (noun)	murder (noun)
the killing of a human being by another human being	unlawful premeditated killing of a human being by a human being

homicide (verb)	murder (verb)
	alter so as to make unrecognizable
	kill intentionally and with premeditation