The word "gringo" is a Spanish term used to refer to a foreigner, specifically someone from the United States or other Anglophone countries. It's not a term commonly used in Hawaiian culture.
If you want to refer to someone from a foreign country in Hawaiian, you would use the word haole (pronounced *how-lay*). This term is neutral and not considered offensive.
Here are some ways to say "gringo" in Hawaiian, depending on the context:
* Haole: This is the most general term for a non-native Hawaiian, but it could also refer to anyone who is not of Polynesian descent.
* Haole Amerika: This means "American foreigner" and specifically refers to someone from the United States.
* Haole 'āina: This means "foreigner of the land" and is a more general term for someone who is not from Hawaii.
Remember, it's always best to use respectful and appropriate language when referring to people from other cultures.