| Main Entry: | |
| Part of Speech: | noun |
| Definition: | watercourse |
| Synonyms: | brook, channel, creek, gorge, gully, ravine, stream |
| Main Entry: | chasm |
| Part of Speech: | noun |
| Definition: | gap, abyss |
| Synonyms: | abysm, alienation, arroyo, blank, breach, cavity, cleavage, cleft, clough, clove, crater, crevasse, fissure, flume, gorge, gulch, gulf, hiatus, hole, hollow, omission, opening, oversight, preterition, ravine, rent, rift, schism, skip, split, void, yawn |
| Antonyms: | closure, junction, juncture |
| Main Entry: | cleft |
| Part of Speech: | noun |
| Definition: | break, gap |
| Synonyms: | aperture, arroyo, breach, canyon, chasm, chink, cleavage, clough, clove, crack, cranny, crevasse, crevice, fissure, fracture, gorge, gulch, opening, ravine, rent, rift, rima, rimation, rime, schism, slit |
| Antonyms: | closing, closure, solid |
| Main Entry: | gap |
| Part of Speech: | noun |
| Definition: | break, breach |
| Synonyms: | aperture, arroyo, blank, caesura, canyon, chasm, cleft, clove, crack, cranny, crevice, cut, defile, difference, disagreement, discontinuity, disparity, divergence, divide, division, fracture, gorge, gulch, gully, hiatus, hole, hollow, inconsistency, interlude, intermission, interruption, interspace, interstice, interval, lacuna, lull, notch, opening, orifice, pause, ravine, recess, rent, respite, rest, rift, rupture, separation, slit, slot, space, vacuity, void |
| Antonyms: | closure |
| Main Entry: | gorge |
| Part of Speech: | noun |
| Definition: | valley |
| Synonyms: | abyss, arroyo, canyon, chasm, cleft, clough, clove, crevasse, fissure, flume, gap, glen, gulch, pass, ravine |
| Notes: | a canyon is a narrow chasm with steep cliff walls formed by running water; a gorge is a deep narrow passage with steep rocky sides formed by running water; a ravine is a deep narrow steep-sided valley formed by running water |
| Main Entry: | gulch |
| Part of Speech: | noun |
| Definition: | small ravine |
| Synonyms: | arroyo, channel, cut, ditch, gap, gorge, gulley, trench, valley |
| Main Entry: | ravine |
| Part of Speech: | noun |
| Definition: | gap in earth's surface |
| Synonyms: | abyss, arroyo, break, canyon, chasm, clove, coulee, crevasse, crevice, cut, defile, ditch, fissure, flume, gorge, gulch, gulf, gully, notch, pass, valley, wash |
| Notes: | a canyon is a narrow chasm with steep cliff walls formed by running water; a gorge is a deep narrow passage with steep rocky sides formed by running water; a ravine is a deep narrow steep-sided valley formed by running water |
| Antonyms: | plain |
| Main Entry: | trench |
| Part of Speech: | noun |
| Definition: | ditch, channel dug in earth |
| Synonyms: | arroyo, canal, cut, depression, dike, drain, drill, dugout, earthwork, entrenchment, excavation, fosse, foxhole, furrow, gorge, gulch, gully, gutter, hollow, main, moat, pit, rut, sink, trough, tube, waterway |
| Main Entry: | interspace |
| Part of Speech: | noun |
| Definition: | gap |
| Synonyms: | aperture, arroyo, blank, caesura, canyon, chasm, cleft, clove, crack*, cranny, crevice, cut, defile, difference, disagreement, discontinuity, disparity, divergence, divide, division, fracture, gorge, gulch, gully, hiatus, hole, hollow, inconsistency, interlude, intermission, interruption, interstice, interval, lacuna, lull, notch, opening, orifice, pause, ravine, recess, rent, respite, rest, rift, rupture, separation, slit, slot, space, vacuity, void |