- an international syndicate, combine, or trust formed especially to regulate prices and output in some field of business.
- a coalition of political or special-interest groups having a common cause, as to encourage the passage of a certain law.
- a written agreement between belligerents, especially for the exchange of prisoners.
- a written challenge to a duel.
- a collusive international association of independent enterprises formed to monopolize production and distribution of a product or service, control prices, etc
- an alliance of parties or interests to further common aims
