trouncing vs thrashing

trouncing and thrashing both are nouns.

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

As nouns, trouncing and thrashing are synonyms defined as:

trouncing and thrashing: the act of inflicting corporal punishment with repeated blows

Other synonyms of trouncing include beating, drubbing, lacing, licking, whacking.

As nouns, trouncing and thrashing are synonyms defined as:

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

trouncing (noun)	thrashing (noun)
the act of inflicting corporal punishment with repeated blows	the act of inflicting corporal punishment with repeated blows
a sound defeat	a sound defeat