What does ulu mean in Hawaiian?
Ulu means to grow, increase, or spread, and a grove of trees. With an ʻokina, ʻulu is breadfruit (Artocarpus altilis), the tree that Polynesian voyagers carried across the Pacific as a staple food. Both senses feed names of growth and plenty: Kaulu is the growth, Ulukai the spreading sea, Leiulu a lei of breadfruit.
Say it OO-loo. Every vowel is pronounced, and the capitalized syllable takes the stress. The pronunciation guide covers the rules.
On this site ulu is part of 17 names: 12 begin with it, 3 end with it, and 2 carry it elsewhere. Most are girl names, and all of them sit in the group of Hawaiian names meaning tree.