A blank gap or missing part.

synonym: blank.

Roget 252: concavity, depression, dip; hollow, hollowness; indentation, intaglio, cavity, dent, dint, dimple, follicle, pit, sinus, alveolus^†, lacuna; excavation, strip mine; trough etc. (furrow) 259; honeycomb.    cup, basin, crater, punch bowl; cell etc. (receptacle) 191; socket.    valley, vale, dale, dell, dingle, combe^†, bottom, slade^†, strath^†, glade, grove, glen, cave, cavern, cove; grot^†, grotto; alcove, cul-de-sac; gully etc. 198; arch etc. (curve) 245; bay etc. (of the sea) 343.    excavator, sapper, miner.    honeycomb (sponge) 252.1. ... show more

Roget 198: interval, interspace^†; separation etc. 44; break, gap, opening; hole etc. 260; chasm, hiatus, caesura; interruption, interregnum; interstice, lacuna, cleft, mesh, crevice, chink, rime, creek, cranny, crack, chap, slit, fissure, scissure^†, rift, flaw, breach, rent, gash, cut, leak, dike, ha-ha.    gorge, defile, ravine, canon, crevasse, abyss, abysm; gulf; inlet, frith^†, strait, gully; pass; furrow etc. 259; abra^†; barranca^†, barranco^†; clove [U.S.], gulch [U.S.], notch [U.S.]; yawning gulf; hiatus maxime [Lat.], hiatus valde deflendus [Lat.]; parenthesis etc. (interjacence) 228^†; void etc. (absence) 187; incompleteness etc. 53.    [interval of time] period etc. 108; interim (time) 106.    ... show more

Roget 53: incompleteness etc. adj.; deficiency, short measure; shortcoming etc. 304; insufficiency etc. 640; imperfection etc. 651; immaturity etc. (nonpreparation) 674; half measures.    [part wanting] defect, deficit, defalcation, omission; caret; shortage; interval etc. 198; break etc. (discontinuity) 70; noncompletion etc. 730; missing link.    missing piece, missing part, gap, hole, lacuna.    ... show more