different between transom vs clerestory

English

From Middle English traunsom; probably an alteration of Latin tr?nstrum (“crossbeam”).

transom (plural transoms)

A crosspiece over a door; a lintel.
A horizontal dividing bar in a window.
A transom window.
(nautical) Any of several transverse structural members in a ship, especially at the stern; a thwart.
(nautical) The flat or nearly flat stern of a boat or ship.
The horizontal beam on a cross or gallows.
(figuratively, usually attributively) Items that have arrived over the transom.
We are overwhelmed with transom resumes.
They only met the deadline by working most of the night and making a transom filing.

clerestory (plural clerestories)

(architecture) The upper part of a wall containing windows to let in natural light to a building, especially in the nave, transept and choir of a church or cathedral.

Send