ʻAleksanadra
This is a direct phonetic transcription of "Alexandra" using the Hawaiian alphabet. However, it's important to note that:
* Hawaiian names often have deeper meanings: The closest meaning to "defender of mankind" might be "Kumu Mana" (meaning "source of strength").
* Using a Hawaiian name with meaning: If you're looking for a Hawaiian name that has a similar meaning to Alexandra, you might consider "Aliʻi" (meaning "chieftain, noble, or of high rank") or "Lani" (meaning "heavenly").
Ultimately, the best way to choose a Hawaiian name is to consider its meaning and significance to you.