building vs lobby

building and lobby both are nouns.

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

building (noun)	lobby (noun)
the act of constructing something	a large entrance or reception room or area
the commercial activity involved in repairing old structures or constructing new ones	an interest group that tries to influence legislators or bureaucrats to act in their favor, typically through lobbying
a structure that has a roof and walls and stands more or less permanently in one place	the people who support some common cause or business or principle or sectional interest
the occupants of a building

building (verb)	lobby (verb)
	detain in conversation by or as if by holding on to the outer garments of; as for political or economic favors