Definition of "caucus" in English

noun

1. A usually preliminary meeting of party members to nominate candidates for public office or delegates to be sent to a nominating convention, or to confer regarding policy.

2. A grouping of all the members of a legislature from the same party.

3. A political interest group by members of a legislative body.

verb

1. (intransitive or transitive with with) To meet and participate in a caucus.

2. (informal, by extension, intransitive) To confer.

3. (transitive) To bring into or treat in a caucus.