| mine(verb, move, turn, produce, clean) |
| show(verb, open, reveal, display, discover) |
| delve(verb, move, action, discover, find) |
| dredge up |
| hear(verb, study, get, check, determine) |
| hit upon(verb, expression, phrasal verb, break, meet) |
| root(verb, turn, produce, clean, discover) |
| quarry(verb, turn, produce, clean, discover) |
| catch on(verb, expression, phrasal verb, get, check) |
| dredge(verb, move, action, turn, produce) |
| stumble on(verb, expression, phrasal verb, meet, establish) |
| uproot(verb, clear, separate, remove, determine) |
| gouge(verb, turn, produce, clean, discover) |
| gouge out(expression, action, probe, burrow) |
| grub(verb, turn, produce, clean, discover) |
| hunt(verb, cover, determine, follow, catch) |
| pick up(verb, expression, phrasal verb, move, separate) |
| probe(verb, action, determine, turn, produce) |
| rake(verb, clear, turn, uncover) |
| spark |