butchery vs butchering

butchery and butchering both are nouns.

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

As nouns, butchery and butchering are synonyms defined as:

butchery (noun)	butchering (noun)
the business of a butcher	the business of a butcher
the savage and excessive killing of many people
a building where animals are butchered