Synonyms of opening

1 Syllable

split, tear, clough, breach, chink, slit, doors, gap, kerf, proem, chasms, break, view, chasm, rift, room, hatch, cleft, first, bloom, blooms, door, job, crack, start, gate, cut, nook, prep, slot, rent, vent, rooms, pore, spout, mouth, shot

2 Syllables

socket, sinus, breaches, craters, oriel, aisle, hiatus, exit, entries, starting, prospect, sub-way, lead-in, apse, source, blooming, premier, space, outlet, outstart, assart, egress, clearing, pored, bloomed, crater, wicket, portals, scuttle, antrum, window, start-off, jump-off, portal, leadin, intro, cranny, proemial, onset, headmost, niche, entry, budding, tester, poring, first-hand, leadoff, jumpoff, adit, recess, hornbook

3 Syllables

crevice, peephole, prologue, inglenook, eyehole, germinal, intervals, sinuses, refuge, occasion, nascency, incisions, interval, recessing, floweret, byplace, fissure, initial, lacunae, incision, recesses, portcullis, cavity, hiatuses, prelusion, fracture, alleyway, nascence, pausation, premiere, occasions, turnstile, puncture, exordium, porthole, youthfulness, beginning, entrance, puncturing, geneses, rupture, genesis, foramen

4 Syllables

prelusive, pubescence, perforation, commencement, underived, perforations, overture, original, incipience, introduction, embrasure, inceptive, precursory, aperture, ventilator, orifice, interstice, originals, occasioning, incipiency, introductions, inductive, interspace

5 Syllables

exploratory, inauguration, opportunity, preliminary, preliminaries, interpolation, prolegomenon, preparatory, initiatory, scarification, preparative, inaugurations, interpolations, introductory, discontinuity, opportunities

6 Syllables

underivative