| olfaction |
| peek(verb, watch, search, bug, hunt) |
| penetration(noun, understanding, ability, careful, perception) |
| perceptiveness(noun, understanding, ability, careful, perception) |
| perspicacity(noun, understanding, ability, careful, insight) |
| ransack(verb, follow, pursue, search, investigate) |
| rub |
| sagacity(noun, understanding, ability, careful, insight) |
| sageness(noun, understanding, ability, careful, insight) |
| scout(noun, verb, follow, pursue, investigate) |
| shrewdness(noun, understanding, ability, careful, insight) |
| sniff out(verb, expression, follow, pursue, investigate) |
| snuffle(verb, detect, breathe, inhale) |
| soul |
| spout |
| stem |
| trace |
| track down(verb, expression, follow, pursue, investigate) |
| wit(noun, understanding, ability, careful, insight) |
| ability(noun, set, power, turn, skill) |