Synonyms and related words :
avenue, blowhole, channel, chute, debouch, door, egress, ejaculative, ejective, emetic, emunctory, eructative, escape, estuary, exhaust, exit, expulsive, extrusive, flatulent, floodgate, flume, loophole, opening, out, outcome, outfall, outgate, outgo, outlet, pore, port, sally port, sluice, spiracle, spout, tap, vent, ventage, venthole, vomitive, way out, weir