For example, are you referring to:
* A bill (financial document): You could use "bile" which means "account" or "palapala uku" which translates to "payment document."
* A bill (legislation): "Kanawai" is the Hawaiian word for "law," and you could use it in context.
* A bill (of a bird): This would be "piko".
* A bill (a restaurant check): You could use "pale" which means "receipt."
To help me give you the most accurate translation, please tell me what kind of bill you're referring to.