thrashing vs slaughter

thrashing and slaughter both are nouns.

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

As nouns, thrashing and slaughter are synonyms defined as:

Other synonyms of thrashing include debacle, drubbing, trouncing, walloping, whipping.

thrashing (noun)	slaughter (noun)
the act of inflicting corporal punishment with repeated blows	the killing of animals (as for food)
a sound defeat	the savage and excessive killing of many people
	a sound defeat

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