| fontanel |
| foramen |
| fracture(noun, break, cut, crack, rest) |
| gape(verb, clear, separate, release, free) |
| hiatus(noun, break, cut, crack, rest) |
| hollow(noun, break, place, cut, position) |
| indicate(verb, name, state, take, give) |
| lacuna(noun, break, time, cut, crack) |
| nominate(verb, name, take, give, charge) |
| one-armed bandit(noun, machine) |
| outlet(noun, opening, breach, space, hole) |
| passage(noun, piece, opening, space, scratch) |
| pick(verb, name, take, make, style) |
| pigeon-hole |
| pocket(noun, space, container, hole, hollow) |
| puncture(noun, verb, clear, separate, release) |
| rack |
| receptacle |
| recess(noun, break, place, cut, position) |
| rut(noun, trace, trail, print, groove) |