Porthole

(n.) An embrasure in a ship's side. See Port.

Thesaurus Entries

air hole, armhole, bay, bay window, blowhole, bow window, bullet-hole, bunghole, casement, casement window, cringle, deadeye, eye, eyelet, fan window, fanlight, gasket, grille, grommet, guide, keyhole, knothole, lancet window, lantern, lattice, light, loop, loophole, louver window, manhole, mousehole, oriel, pane, peephole, picture window, pigeonhole, pinhole, placket, placket hole, port, punch-hole, rose window, skylight, spiracle, tap, transom, vent, venthole, wicket, window, window bay, window glass, windowpane