sex activity vs pinnacle

sex activity and pinnacle both are nouns.

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

sex activity (noun)	pinnacle (noun)
activities associated with sexual intercourse	(architecture) a slender upright spire at the top of a buttress or tower
	a lofty peak
	the highest level or degree attainable; the highest stage of development

sex activity (verb)	pinnacle (verb)
	raise on or as if on a pinnacle
	surmount with a pinnacle