| APP | nonsensical talk or writing |
|---|---|
| APP | puree of stewed apples usually sweetened and spiced |
| APP | moist spicy cake containing applesauce |
| APP | a Java application |
| APP | a town in eastern Wisconsin |
| APP | English physicist remembered for his studies of the ionosphere (1892-1966) |
| APP | the highest region of the ionosphere (from 90 to 600 miles up) that contains the highest concentration of free electrons and is most useful for long-range radio transmission |
| APP | wood of any of various apple trees of the genus Malus |
| APP | durable goods for home or office use |
| APP | a device that very useful for a particular job |
| APP | relevance by virtue of being applicable to the matter at hand |
| APP | readily applicable or practical |