How do you say the in hawaiian?

The word "the" doesn't exist in Hawaiian. It's not necessary to use it because the context of the sentence usually makes it clear which item or person is being referred to.

For example, instead of saying "the book," you would simply say "puke" (book).

If you need to clarify, you can use words like "kēia" (this), "kēlā" (that), "nā" (the/those) or "ka" (the/that) depending on the context.