bar

bar.
1. Single piece of wood or metal, of any shape in section, placed horizontally, like the rail of a gate, to form an obstruction, or latch-bar dropped into a mortise behind a door or shutter to fasten it shut.

2. Horizontal timber ledge fixed to the back of a barred or ledged door to which the door-finish and hinges are fixed.

3. Gateway or gatehouse (such as the Micklegate, York), a barrier, or a toll-gate (toll-bar) on a highway.

4. Enclosure or barrier in a court of justice marking off the precinct of a judge's seat, at which prisoners are stationed for arraignment, trial, and sentence, or a particular court of law, or a barrier separating the seats of the benchers or readers from the rest of a hall, to which students were ‘called’ from the body of the hall (hence barristers ‘called to the bar’).

5. Barrier or counter over which drink (or food) is served in an inn, hotel, etc., or the room in which it is installed.

6. Pieces of timber forming the horizontal and vertical glazed divisions of a sash in a window, called bar of a sash, glazing-, sash-, or window-bar. The upright at the junction of two planes of a canted bay-window is called the angle-bar.

7. Flowing patterns in Gothic tracery, all the stonework having moulded sections the same as the mullions from which they rise, create bar-tracery, because the patterns are similar to those capable of being formed using wrought-iron bars.