slaughter vs butchery

slaughter and butchery both are nouns.

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

As nouns, slaughter and butchery are synonyms defined as:

Other synonyms of slaughter include carnage, mass murder, massacre.

slaughter (noun)	butchery (noun)
the killing of animals (as for food)	the business of a butcher
the savage and excessive killing of many people	the savage and excessive killing of many people
a sound defeat	a building where animals are butchered

slaughter (verb)	butchery (verb)
kill a large number of people indiscriminately
kill (animals) usually for food consumption