A manually operated sliding rod or bar attached to a door for locking it; a spring is not part of the locking […]

A heavy bar across a door to prevent it from being opened, such as a plank dropped between metal holders on each

A horizontal band of bricks, or course, that is laid diagonally on edge; each brick is set so that one corner projects

1. An ornament in medieval architecture and derivatives, of more or less elaborate motif, usually pyramidal with notched sides, the

A half-turn stair which has no wellhole between successive flights; the rail and balusters of the upper and under flights fall in the

Having two columns in front; used in describing a classical building.

A water purification process in which water is converted to a vapor by boiling it, and then reconverted to purified water by