| discover(verb, follow, catch, find, expel) |
| ferret out(verb, expression, catch, discover, find) |
| follow up(verb, phrasal verb, follow, pursue, track) |
| hound(verb, follow, harass, pursue, trace) |
| shadow(verb, follow, catch, discover, find) |
| smell out(verb, expression, determine, follow, catch) |
| stalk(verb, follow, catch, discover, find) |
| badger(verb, bother, follow, annoy, harass) |
| bait(verb, bother, follow, annoy, harass) |
| be on to(verb, determine, follow, discover, pursue) |
| bird-dog(verb, bother, follow, catch, annoy) |
| bug(verb, bother, follow, annoy, harass) |
| chase down(verb, expression, determine, follow, discover) |
| chivy(verb, bother, follow, annoy, harass) |
| drive(verb, bother, annoy, harass, pursue) |
| drive out(verb, expression, determine, follow, discover) |
| ferret |
| get at(verb, expression, determine, follow, discover) |
| give chase(expression, bother, follow, annoy, harass) |
| gun |