mop up vs trounce

mop up is a noun but trounce is not a noun.

Word	Noun	Adjective	Verb	Adverb
mop up	Yes	No	Yes	No
trounce	No	No	Yes	No

As verbs, trounce is a hypernym of mop up; that is, trounce is a word with a broader meaning than mop up:

Other hypernyms of mop up include beat, beat out, crush, shell, vanquish.

mop up (noun)	trounce (noun)
a concluding action

mop up (verb)	trounce (verb)
finish a task completely	censure severely or angrily
defeat thoroughly	come out better in a competition, race, or conflict
to wash or wipe with or as if with a mop	beat severely with a whip or rod