Hiatus1. (n.) A gap or interruption in space or time; as a hiatus in a manuscript; a hiatus from one's work; An opening; an aperture; a gap; a chasm; esp., a defect in a manuscript, where some part is lost or effaced; a break.
2. (n.) The concurrence of two vowels in two successive words or syllables.
Thesaurus Entries
aperture, arrearage, breach, break, broaching, caesura, cavity, cessation, chasm, check, clearance, clearing, cleft, crack, defalcation, defect, deficiency, deficit, disclosure, discontinuity, distance between, double space, em space, en space, fenestra, fissure, fistula, fontanel, foramen, freeboard, gap, gape, gat, gulf, hair space, half space, hole, hollow, inlet, interim, intermediate space, intermission, interruption, interspace, interstice, interval, jump, lack, lacuna, laying open, leak, leap, leeway, letup, lull, margin, missing link, need, omission, opening, opening up, orifice, outage, outlet, passageway, pause, pore, room, shortage, single space, slot, space, space between, split, stoma, suspension, throwing open, time interval, ullage, uncorking, unstopping, want, wantage, yawn