building vs shaft

building and shaft both are nouns.

Word	Noun	Adjective	Verb	Adverb
building	Yes	No	No	No
shaft	Yes	No	Yes	No

building (noun)	shaft (noun)
the act of constructing something	the hollow spine of a feather
the commercial activity involved in repairing old structures or constructing new ones	a long rod or pole (especially the handle of an implement or the body of a weapon like a spear or arrow)
a structure that has a roof and walls and stands more or less permanently in one place	a revolving rod that transmits power or motion
the occupants of a building	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)

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