shut-in

Etymology
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Adjective

 * 1) Confined to a location, as by infirmity or illness.

Noun

 * 1) A person confined to a location, as by illness or infirmity.
 * 2) A type of rock formation in which a stream is confined to a narrow bed of resistant stone.
 * 1) A type of rock formation in which a stream is confined to a narrow bed of resistant stone.