| faithless(adjective, wrong, false, dishonest, deceitful) |
| fake(noun, adjective, false, counterfeit, dishonest) |
| follicle |
| ghostly(adjective, sound, deep, resonant) |
| hollowed |
| illusive(adjective, fake, counterfeit, sham, reasoning) |
| ineffectual(adjective, poor, inadequate, useless, trivial) |
| infundibular(adjective, empty, out, concavity) |
| lacuna(noun, break, cut, crack, rest) |
| nonsensical(adjective, value, insignificant, unimportant, empty) |
| nook(noun, break, place, position, function) |
| null |
| null and void(expression, idiom) |
| recessed |
| remove(verb, take, raise, lift, concave) |
| resounding(adjective, sound, deep, resonant) |
| rut(noun, verb, cut, mark, line) |
| scoop out(verb, expression, phrasal verb, expand, dig) |
| shaft(noun, well, hole, gap, mine) |
| sink(noun, drop, decline, fall, depression) |