1) (of a legislative assembly) having two separate groups of members e.g. the Senate and the House of Representatives in USA (bicameral)

2) (usually the House of Commons) the assembly of the British Parliament elected by the people (commons)

3) possessing or showing honour; a title given to judges and some other officials, to the children of peers below the rank of Marquis, and (during debates) to member of the House of Commons (honourable)

4) a supreme law-making assembly (in GB the House of Commons and the House of Lords) (parliament)

5) a meeting of fashionable, intelligent etc people at the house of a rich and famous lady (especially in Paris) (salon)