| observe(verb, see, catch, notice, spot) |
| recognize(verb, see, catch, observe, notice) |
| reveal(verb, see, catch, observe, notice) |
| scent(verb, see, catch, observe, notice) |
| smell out(verb, expression, phrasal verb, see, catch) |
| smoke out(verb, expression, phrasal verb, see, catch) |
| spot(verb, catch, notice, discover, sense) |
| stumble on(verb, expression, phrasal verb, see, catch) |
| track down(verb, expression, phrasal verb, see, catch) |
| turn up(verb, expression, catch, notice, spot) |
| uncover(verb, see, catch, observe, notice) |
| unmask(verb, catch, notice, spot, discover) |
| wise up to(verb, expression, idiom, phrasal verb, see) |
| become aware of(expression, idiom, notice, spot, sense) |
| perceive(notice, spot, sense) |
| sense(notice, spot) |