transom /ˈtɹæn.səm/noun 7forms 1phrases 1 noun7 •A crosspiece over a door; a lintel. •A horizontal glazing bar in a window. •Any of several transverse structural members in a ship, especially at the stern; a thwart. •The horizontal beam on a cross or gallows. •A transom window. •The flat or nearly flat stern of a boat or ship. •[before a noun] (figurative) 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. formstransoms Phrases with transom over the transomOf a work submitted for publication, unsolicited.