| APP | fill with apprehension or alarm |
|---|---|
| APP | strike with disgust or revulsion |
| APP | an impoverished coal mining area in the Appalachian Mountains (from Pennsylvania to North Carolina) |
| APP | in or relating to Appalachia |
| APP | a mountain range in the eastern United States extending from Quebec to the Gulf of Mexico |
| APP | a mountain range in the eastern United States extending from Quebec to the Gulf of Mexico |
| APP | fill with apprehension or alarm |
| APP | strike with disgust or revulsion |
| APP | struck with fear, dread, or consternation |
| APP | an experience that appalls |
| APP | causing consternation |
| APP | to an appalling extent |