mop up vs culmination

mop up and culmination both are nouns.

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

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

Other synonyms of mop up include closing, completion, windup.

mop up (noun)	culmination (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

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