You could try these options:
* "ʻO Tenesī" - This is simply "Tennessee" pronounced with a Hawaiian accent.
* "Ka mokuʻāina ʻo Tenesī" - This translates to "The state of Tennessee" and emphasizes that it is a separate political entity.
* "ʻO ka ʻāina ʻo Tenesī" - This means "The land of Tennessee" and focuses on the geographic location.
Ultimately, the best way to say "Tennessee" in Hawaiian depends on the context and what you want to emphasize.