| Rating | Solver | Clue |
|---|---|---|
| RIFT | Narrow fissure | |
| CREVICE | Narrow fissure | |
| RIMA | A narrow and elongated aperture; a cleft; a fissure. | |
| CRANNY | A small, narrow opening, fissure, crevice, or chink, as in a wall, or other substance. | |
| FISSURE | A narrow opening, made by the parting of any substance; a cleft; as, the fissure of a rock. | |
| CRACK | A partial separation of parts, with or without a perceptible opening; a chink or fissure; a narrow breach; a crevice; as, a crack in timber, or in a wall, or in glass. | |