| debunk(verb, determine, see, catch, observe) |
| delve for(verb, expression, follow, pursue, investigate) |
| descry(verb, meet, see, catch, strike) |
| design(verb, determine, see, catch, observe) |
| devise(verb, determine, see, catch, observe) |
| dig(action, investigate, research, probe, burrow) |
| dig for(verb, expression, follow, pursue, investigate) |
| drag(verb, examine, look, seek, investigate) |
| dragnet(verb, follow, pursue, seek, investigate) |
| dredge(action, investigate, dig, research, probe) |
| encounter(verb, meet, see, catch, strike) |
| establish(verb, strike, reveal, spot, discover) |
| examine(verb, action, look, seek, search) |
| fall in with(verb, expression, idiom, meet, catch) |
| fan(verb, follow, pursue, seek, investigate) |
| fathom |
| fish(verb, follow, pursue, search, investigate) |
| fish for(verb, expression, follow, examine, pursue) |
| fish out |
| fish up |