opening
noun
1 the large hall is lit by an opening in the center of the roof:
hole, gap, aperture, space, orifice, vent, slot, window, crack, slit, gash, split, fissure, perforation, cleft, crevice, cut, incision, rent, cavity, cranny, groove, chink, eye, mouth;
loophole, peephole, judas;
interstice;
British spyhole;
Medicine hiatus, foramen.
2 she was still heading toward the dark opening in the wall:
doorway, gateway, portal, way, entrance, entry, entryway, means of entry, way in, entrée, access, means of access, exit, egress, way out.
3 United created openings but were unable to score:
opportunity, chance, favorable time/occasion/moment, right set of circumstances, moment, occasion, window (of opportunity), possibility, turn, time;
informal break, lucky break, shot.
5 the opening of the session had been repeatedly postponed:
beginning, start, outset, inception, launch, birth, dawn;
introduction, preliminary, preface, prelude, foreword, preamble, prefatory remarks, opening statement, opening remarks, prologue;
informal kickoff;
formal commencement;
rare proem, prolegomenon.
▷antonyms closure, close, end, termination.