lobbylob·by1 /ˈlɒbiˈlɑːbi/ noun (plural lobbies) [countableC]1a group of people with similar interests who try to persuade a government that a particular law or situation should be changedOpposition to the new law is expected from India’s industry lobby.
The Prime Minister is still under pressure from the farm lobby.
2an attempt by a group of people to persuade members of a government that a particular law or situation should be changedlobby ofA mass lobby of parliament is planned for next week.