culmination vs termination

culmination and termination both are nouns.

Word	Noun	Adjective	Verb	Adverb
culmination	Yes	No	No	No
termination	Yes	No	No	No

As nouns, termination is a hypernym of culmination; that is, termination is a word with a broader meaning than culmination:

Other hypernyms of culmination include conclusion, ending.

culmination (noun)	termination (noun)
a concluding action	the act of ending something
the decisive moment in a novel or play	the end of a word (a suffix or inflectional ending or final morpheme)
(astronomy) a heavenly body's highest celestial point above an observer's horizon	something that results
a final climactic stage	a place where something ends or is complete
	a coming to an end of a contract period