lobby
lob-by
noun
An organised group seeking to influence politicians or public opinion on an issue.
"The farming lobby opposed the new regulations."
verb
To try to persuade politicians or government officials to support a cause.
"Environmentalists lobbied Parliament for change."
noun
A large hall at the entrance of a public building or hotel.
"We waited for him in the hotel lobby."
Thesaurus
Synonyms: buttonhole, special interest, lobby group, special-interest group, pressure group, special interest group, third house, advocacy group, entrance hall, antechamber, anteroom, foyer