* Cuz: This is the most common spelling, and it's often used in casual speech.
* Cuzzy: This is another common spelling, though less frequent than "cuz."
* Cuzin: This spelling is less common but still used, particularly in some regions.
* Couz: This spelling is less common and often considered more informal.
It's important to note that these spellings are all informal and may not be considered standard English.