trounce vs lather

trounce is not a noun while lather is a noun.

Word	Noun	Adjective	Verb	Adverb
trounce	No	No	Yes	No
lather	Yes	No	Yes	No

As verbs, trounce and lather are synonyms defined as:

Other synonyms of trounce include flog, lash, slash, strap, welt, whip.

trounce (noun)	lather (noun)
	the froth produced by soaps or detergents
	the foam resulting from excessive sweating (as on a horse)
	a workman who puts up laths
	agitation resulting from active worry

trounce (verb)	lather (verb)
censure severely or angrily	rub soap all over, usually with the purpose of cleaning
come out better in a competition, race, or conflict	exude sweat or lather
beat severely with a whip or rod	form a lather
	beat severely with a whip or rod