1.
A roofed promenade, especially one extending along the wall of a building and supported by arches or columns on the outer side.
2.
A long enclosed passage, such as a hallway or corridor.
3.
a. A narrow balcony, usually having a railing or balustrade, along the outside of a building. b. A projecting or recessed passageway along an upper story on the interior or exterior of a large building, especially a church, generally marked by a colonnade or an arcade.
4. Lower Southern U.S.. See veranda.
5. a. An upper section, often with a sloping floor, projecting from the rear or side walls of a theater or an auditorium to provide additional seating. b. The seats in such a section, usually cheaper than those on the main floor. c. The cheapest seats in a theater, generally those of the uppermost gallery. d. The audience occupying a gallery or cheap section of a theater.
6. A large audience or group of spectators, as at a tennis or golf match.
7. The general public, usually considered as exemplifying a lack of discrimination or sophistication: accused the administration of playing to the gallery on the defense issue.
8. a. A building, an institution, or a room for the exhibition of artistic work. b. An establishment that displays and sells works of art. c. A photographer's studio.
9. A collection; an assortment: The trial featured a gallery of famous and flamboyant witnesses.
10. a. An underground tunnel or passageway, as in a cave or one dug for military or mining purposes. b. A passage made by a tunneling insect or animal.
11. Nautical. A platform or balcony at the stern or quarters of some early sailing ships.
12. A decorative upright trimming or molding along the edge of a table top, tray, or shelf.