(US) A building where visitors pay to play billiards (pool).

(history, architecture) The main room of a palace, castle or large manor house in the Middle Ages, or in a country house of the 16th and early 17th centuries

An organization which has the responsibility of furnishing new recruits for employers who have a collective bargaining agreement with the trade union.

A carnival attraction with curved mirrors that distort the viewer's appearance.

Nordic king's structure, center of the community, a place for feasting, with ample brewed beverages (mead).

A lecture theatre.

plural of Hall effect

(usually capitalized) Collection of the worst, most hated, or poorest-quality entries in a particular subject, medium, field, etc.

(usually capitalized, often sports) A structure housing memorials to famous or illustrious individuals (especially ones of importance to some field), often containing a collection of memorabilia relating to them.

(US) A military dining room or building on an army or marine base.