ko·a 
(kōə)
(kōə)n.
1. A tree (Acacia koa) in the pea family, native to Hawaii, having flowers arranged in axillary racemes and small sickle-shaped leaves.
2. The light-to-dark brown or reddish wood of this tree, used for furniture, crafts, cabinetry, and musical instruments.
[Hawaiian, from Proto-Polynesian *to'a, ironwood tree.]