[ lob-ee ]
See synonyms for: lobbylobbiedlobbying on Thesaurus.com

noun,plural lob·bies.
  1. an entrance hall, corridor, or vestibule, as in a public building, often serving as an anteroom; foyer.

  2. a large public room or hall adjacent to a legislative chamber.

  1. a group of persons who work or conduct a campaign to influence members of a legislature to vote according to the group's special interest.

verb (used without object),lob·bied, lob·by·ing.
  1. to solicit or try to influence the votes of members of a legislative body.

verb (used with object),lob·bied, lob·by·ing.
  1. to try to influence the actions of (public officials, especially legislators).

  2. to urge or procure the passage of (a bill), by lobbying.

Origin of lobby

1545–55; <Medieval Latin lobia, laubia covered way <Old High German *laubia (later lauba) arbor, derivative of laubleaf

Other words from lobby

  • lob·by·er, noun
  • un·lob·bied, adjective
  • un·lob·by·ing, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use lobby in a sentence

British Dictionary definitions for lobby


/ (ˈlɒbɪ) /

nounplural -bies
  1. a room or corridor used as an entrance hall, vestibule, etc

  2. mainly British a hall in a legislative building used for meetings between the legislators and members of the public

  1. Also called: division lobby mainly British one of two corridors in a legislative building in which members vote

  2. a group of persons who attempt to influence legislators on behalf of a particular interest

verb-bies, -bying or -bied
  1. to attempt to influence (legislators, etc) in the formulation of policy

  2. (intr) to act in the manner of a lobbyist

  1. (tr) to apply pressure or influence for the passage of (a bill, etc)

Origin of lobby

C16: from Medieval Latin lobia portico, from Old High German lauba arbor, from laub leaf

Derived forms of lobby

  • lobbyer, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Cultural definitions for lobby


A group whose members share certain goals and work to bring about the passage, modification, or defeat of laws that affect these goals. Lobbies (also called interest groups or pressure groups) can be long-standing (such as minority groups struggling to have their civil rights guaranteed) or ad hoc (such as a community threatened by proposed construction of a nuclear power plant). Lobbies may use grassroots methods, such as local rallies and campaigns, to build support for their cause and often employ professional lobbyists, who testify before congressional committees and approach policymakers in all government branches. Powerful lobbies, such as the AFL-CIO and the American Legion, with millions of members, have succeeded in establishing influence in Washington, D.C.

The New Dictionary of Cultural Literacy, Third Edition Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.