murder vs slaughter

murder and slaughter both are nouns.

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

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

murder (noun)	slaughter (noun)
unlawful premeditated killing of a human being by a human being	the killing of animals (as for food)
	the savage and excessive killing of many people
	a sound defeat

murder (verb)	slaughter (verb)
alter so as to make unrecognizable	kill a large number of people indiscriminately
kill intentionally and with premeditation	kill (animals) usually for food consumption