A recess in a wall designed to receive a folding or sliding door in the open position.

A recess made in masonry to receive the end of a beam.

One of the several receptacles into which punched cards are fed by a card sorter.

1. A cavity that contains a deposit such as a gas or an ore.

2. An enclosed or sheltered place along a coast, such as a reentrant between rocky, cliffed headlands or a bight on a lee shore.

A receptacle from which coal, ore, or waste is loaded into wagons or cars.