| Rating | Solver | Clue |
|---|---|---|
| OVERT | Observable | |
| VISUAL | Observable | |
| INOBSERVABLE | Not observable. | |
| DEMONSTRATION | March will provide observable proof | |
| REGARDABLE | Worthy of regard or notice; to be regarded; observable. | |
| ONCOGRAPH | An instrument for registering the changes observable with an oncometer. | |
| APTNESS | Quickness of apprehension; readiness in learning; docility; as, an aptness to learn is more observable in some children than in others. | |
| RATTLE | ...ssing through mucus which the lungs are unable to expel; -- chiefly observable at the approach of death, when it is called the death rattle. ... | |