Formal:
* Goed: This is the most literal translation of "okay" and means "good."
* In orde: This means "in order" and is a more formal way to say "okay."
Informal:
* Akkoord: This means "agreed" and is a common way to say "okay" in informal situations.
* Oké: This is a direct borrowing from English, but it is used fairly often in informal speech.
* Goed zo: This means "good so" and is a way of saying "okay" in a positive way.
The best way to say "O.K." in Flemish depends on the situation and the relationship you have with the person you are speaking to.