How do you say hello in melanesian?

There is no single "Melanesian" language. Melanesia is a vast region with hundreds of distinct languages.

To say hello in a specific Melanesian language, you'll need to specify which language you're interested in. For example:

* Tok Pisin (Papua New Guinea): "Hello" or "Gudmornin" (good morning)

* Bislama (Vanuatu): "Hello" or "Gudmornin" (good morning)

* Fiji Hindi (Fiji): "Namaste" (formal) or "Ram Ram" (informal)

* Swahili (Tanzania, Kenya, etc.): "Habari" (formal) or "Jambo" (informal)

If you can tell me which language you're interested in, I can give you a more precise greeting.