lash vs trounce

lash is a noun but trounce is not a noun.

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

As verbs, lash and trounce are synonyms defined as:

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

lash (noun)	trounce (noun)
a quick blow delivered with a whip or whiplike object
leather strip that forms the flexible part of a whip
any of the short curved hairs that grow from the edges of the eyelids

lash (verb)	trounce (verb)
strike as if by whipping	censure severely or angrily
beat severely with a whip or rod	come out better in a competition, race, or conflict
bind with a rope, chain, or cord	beat severely with a whip or rod
lash or flick about sharply