culmination vs sex activity

culmination and sex activity both are nouns.

Word	Noun	Adjective	Verb	Adverb
culmination	Yes	No	No	No
sex activity	Yes	No	No	No

culmination (noun)	sex activity (noun)
a concluding action	activities associated with sexual intercourse
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