Short Words:
* ape
* at
* ask
* arm
* air
* aunt
* all
Longer Words:
* apron
* alphabet
* applause
* appear
* apply
* aquarium
* arrow
Bonus:
* A (the letter)
Remember that the sound "app" can be spelled in different ways, like "ap" in "apron" or "a" in "arrow."
Let me know if you'd like more words!