List of porthole synonyms and porthole related words.
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