›[C]formala room used for a special or official purpose, or a group of people who form (part of) a parliament: Meetings of the council are held in the council chamber.a torture chamberThere are two chambers in the British parliament - the House of Commons is the lower chamber, and the House of Lords is the upper chamber.Rooms›[plural]a judge's private office. A judge may have legal discussions with lawyers in private in his or her chambers.Law courts›[C]Indian Englishan office, especially of a person in an important positionin chambersformalUKlegal›If a trial is in chambers, it happens in a court room without the public, newspaper reporters, etc. being there.Secrecy and privacyLaw courts