transom

plural transoms

1. architectureA crosspiece over a door; a lintel.
2. architectureA horizontal glazing bar in a window.
3. A transom window.
4. nauticalAny of several transverse structural members in a ship, especially at the stern; a thwart.

   1 more example

   The characteristics of the French model were a beautifully rounded bow, by no means sharp along the water-line, easy sectional lines developing into a full, powerful forebody and midship section, and great dead rise at half floor. The greatest breadth was well forward of amidships and at the waterline, with a slight, gracefully rounded tumble home to the plank-sheer. The after-body was finely moulded, clean, sharp, and long, with a powerful transom and quarters. The time-honored cod's head and mackerel's tail: the figureheads and ornamentation of the quarters and stern, were veritable works of art.

   1911, Arthur Hamilton Clark, The Clipper Ship Era 1843-1869, Chapter 1

5. nauticalThe flat or nearly flat stern of a boat or ship.
6. The horizontal beam on a cross or gallows.
7. attributivefigurativelyusuallyItems that have arrived over the transom.

   We are overwhelmed with transom resumes.

   1 more example

   They only met the deadline by working most of the night and making a transom filing.