sex activity vs shaft

sex activity and shaft both are nouns.

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

sex activity (noun)	shaft (noun)
activities associated with sexual intercourse	the hollow spine of a feather
	a long rod or pole (especially the handle of an implement or the body of a weapon like a spear or arrow)
	a revolving rod that transmits power or motion
	a long vertical passage sunk into the earth, as for a mine or tunnel
	(architecture) upright consisting of the vertical part of a column
	a vertical passageway through a building (as for an elevator)
	a long pointed rod used as a tool or weapon
	the main (mid) section of a long bone
	obscene terms for penis
	a line that forms the length of an arrow pointer
	an aggressive remark directed at a person like a missile and intended to have a telling effect
	a column of light (as from a beacon)

sex activity (verb)	shaft (verb)
	defeat someone through trickery or deceit
	equip with a shaft