Teak \Teak\ (t[=e]k), n. [Malayalam tekku.] (Bot.) A tree of East Indies ({Tectona grandis}) which furnishes an extremely strong and durable timber highly valued for shipbuilding and other purposes; also, the timber of the tree. [Written also {teek}.] [1913 Webster] {African teak}, a tree ({Oldfieldia Africana}) of Sierra Leone; also, its very heavy and durable wood; -- called also {African oak}. {New Zeland teak}, a large tree ({Vitex littoralis}) of New Zeland; also, its hard, durable timber. [1913 Webster]