Roget's Thesaurus of English Words and Phrases by Peter Mark Roget

transforation†; pinhole, keyhole, loophole, porthole, peephole, mousehole, pigeonhole; eye of a needle; eyelet; slot. opening; aperture, apertness†; hiation†, yawning, oscitancy†, dehiscence, patefaction†, pandiculation†; chasm &c (interval) 198. embrasure, window, casement; abatjour†; light; sky light, fan light; lattice; bay window, bow window; oriel [Arch.]; dormer, lantern. outlet, inlet; vent, vomitory; embouchure; orifice, mouth, sucker, muzzle, throat, gullet, weasand†, wizen, nozzle; placket. portal, porch, gate, ostiary†, postern, wicket, trapdoor, hatch, door; arcade; cellarway†, driveway, gateway, doorway, hatchway, gangway; lich gate†. way, path &c 627; thoroughfare; channel; passage, passageway; tube, pipe; water pipe &c 350; air pipe &c 351; vessel, tubule, canal, gut, fistula; adjutage†, ajutage†; ostium†; smokestack; chimney, flue, tap, funnel, gully, tunnel, main; mine, pit, adit†, shaft; gallery. alley, aisle, glade, vista. bore, caliber; pore; blind orifice; fulgurite†, thundertube†. porousness, porosity. sieve, cullender†, colander; cribble†, riddle, screen; honeycomb. apertion†, perforation; piercing &c v.; terebration†, empalement†, pertusion†, puncture, acupuncture, penetration. key &c 631, opener, master key, password, combination, passe- partout. V. open, ope†, gape, yawn, bilge; fly open. perforate, pierce, empierce†, tap, bore, drill; mine &c (scoop out) 252; tunnel; transpierce†, transfix; enfilade, impale, spike, spear, gore, spit, stab, pink, puncture, lance, stick, prick, riddle, punch; stave in. cut a passage through; make way for, make room for. uncover, unclose, unrip†; lay open, cut open, rip open, throw open, pop open, blow open, pry open, tear open, pull open. Adj. open; perforated &c v.; perforate; wide open, ajar, unclosed, unstopped; oscitant†, gaping, yawning; patent. tubular, cannular†, fistulous; pervious, permeable; foraminous†; vesicular, vasicular†; porous, follicular, cribriform†, honeycombed, infundibular†, riddled; tubulous†, tubulated†; piped, tubate†. opening &c v.; aperient†. Int. open sesame!,