Words with the same short "u" sound as "dull":
* Full
* Pull
* Push
* Put
* Mud
* Sun
* Run
* Jug
* Bus
* Cluck
* Hump
* Tough
* Stuff
Note: The spelling of the vowel sound can vary, but the sound is the same. For example, "dull" has "u", "full" has "u", and "sun" has "u".