Animal Sounds:
* A-choo: Sneeze
* A-ha: A sudden realization or understanding
* Aah: A sigh of relief or pleasure
* Arf: A dog's bark
* Awk: The sound of an awkward moment
Other Sounds:
* A-clatter: The sound of things falling and hitting each other
* A-flutter: The sound of something flapping
* A-honk: The sound of a car horn
* A-hum: A low, continuous humming sound
* A-thump: The sound of a heavy object hitting the ground
* A-whoosh: The sound of something moving swiftly through the air
* A-zap: The sound of something being struck with electricity
Note: Some of these words may be considered more regional or informal.