What does hau mean in Hawaiian?
Hau is the native hibiscus tree (Hibiscus tiliaceus) whose light wood made canoe outriggers, and also a word for coolness, dew, ice, and snow. Kēhau, dew, contains it. Haulani is heavenly dew, Kahau the dew, Leihau a lei of hau blossoms. Haunani, beautiful dew or beautiful snow, is a well-known girl's name.
Say it HOW. Every vowel is pronounced, and the capitalized syllable takes the stress. The pronunciation guide covers the rules.
On this site hau is part of 17 names: 12 begin with it, 4 end with it, and 1 carry it elsewhere. Most are girl names, and all of them sit in the group of Hawaiian names meaning rain.