English Reference
noun · verb

caucus

n. · v.
US /ˈkɑkəs/ UK /kˈɔːkəs/ cau·cus UK spelling caucused, caucuses, caucussed

  1. 01 C1 Advanced American EnglishFormal Law

    n.a meeting where members of a political party choose candidates or decide on a plan.

    n.a meeting of supporters or members of a specific political party or movement to mobilize and coordinate action.

    Simple

    The local party members held a caucus to decide which candidate to support for mayor.

    In context

    Voters in Iowa gathered for the first caucus of the election cycle, participating in a series of debates before casting their final ballots.

    Usage

    Often used in the context of US primary elections.

  2. 02 C1 Advanced American EnglishFormal Law

    n.a group of people in a government who belong to the same party or share the same interests.

    n.a group within a legislative or decision-making body that shares common goals or party affiliation.

    Simple

    The environmental caucus met to discuss the new laws about clean water.

    In context

    The legislative caucus remained divided on the tax reform bill, with several members threatening to vote against the party line.

    Usage

    Commonly used for groups like the 'Black Caucus' or 'Women's Caucus'.

  3. 03 C1 Advanced American EnglishFormal Law

    v.to meet as a group to discuss a plan or choose a leader.

    v.to hold or participate in a caucus; to confer with members of the same political faction.

    Simple

    The delegates will caucus tonight to pick their representative.

    In context

    The committee members decided to caucus privately before returning to the floor to announce their final decision.

    Usage

    Usually an intransitive verb.

Albanese told a meeting of Labor’s caucus that the plan was a threat to the compulsory super rules.

The Guardian· 8 Sept 2026

The prime minister, Anthony Albanese, has savaged One Nation’s plans, telling a meeting of Labor’s caucus that the plan was a threat to the compulsory super rules.

The Guardian· 8 Sept 2026

Unknown. Often claimed to be from an Algonquian language; transcribed words such as cawaassough and caucauasu meaning "counselor, elder, adviser" appear in early texts. A popular folk etymology attested in Great Leaders and National Issues of 1896 stated: "In the early part of the eighteenth century a number of caulkers connected with the shipping business in the North End of Boston held a meeting for consultation. That meeting was the germ of the political caucuses which have formed so prominent a feature of our government ever since its organization." American Heritage Dictionary states the term is taken from the Caucus Club of Boston in the 1760s, possibly from Medieval Latin caucus (“drinking vessel”).

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin la-med caucus
Level C1 · Advanced
Frequency Frequent
Updated