Abyss, Aperture, Bar, Bind, Block, Blockade, Breach, Break, Broach, Bump, Bung, Canyon, Cash, Cavity, Chamfer, Chap, Chase, Chasm, Check, Chime, Chiming, Chimney, Part, Pass, Passage, Pat, Patter, Peal, Pealing, Plug, Plump, Pop, Rap, Ravine, Rent, Rifling, Rift, Rime, Ring, Ringing, Rip, Ruck, Rupture, Rut, Score, Scratch, Seam, Separate, Slit, Slot, Sound, Split, Spread, Stay, Stench, Stop, Stopper, Streak, Striation, Stuff, Tap, Tear, Thud, Thump, Tick, Tingle, Tingling, Tinkle, Tinkling, Tinnitus, Toll, Tolling, Trench, Valley, Void, Vulnerability, Wadi, Weakness, Wrinkle, Choke, Clang, Clanging, Clank, Clanking, Cleave, Cleft, Click, Clink, Clog, Clump, Coin, Col, Congest, Cork, Couloir, Cover, Crack, Cranny, Crevasse, Crevice, Currency, Cut, Dado, Dam, Defile, Dell, Ding, Dingdong, Dingle, Ditch, Divide, Dong, Donga, Dough, Draw, Engraving, Excavation, Fault, Fill, Fissure, Flaw, Flick, Flute, Fluting, Foul, Fracture, Furrow, Gap, Gape, Gash, Gong, Gorge, Gouge, Groove, Gulf, Gully, Hole, Incision, Interruption, Jam, Jangle, Jingle, Jingling, Joint, Kloof, Knell, Leak, Lettuce, Loot, Moat, Notch, Obstruct, Open, Opening, Pack, Pad