culmination vs mop up

culmination and mop up both are nouns.

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

As nouns, culmination and mop up are synonyms defined as:

Other synonyms of culmination include closing, completion, windup.

culmination (noun)	mop up (noun)
a concluding action	a concluding action
the decisive moment in a novel or play
(astronomy) a heavenly body's highest celestial point above an observer's horizon
a final climactic stage

culmination (verb)	mop up (verb)
	finish a task completely
	defeat thoroughly
	to wash or wipe with or as if with a mop