Tao is a word in Polynesian languages and can have a number of different meanings.
In Samoan and Māori, a tao is a long traditional wooden spear.
The word also has another meaning in the Samoan language; tao also means 'to bake' or 'roast' in a traditional oven made of hot rocks above ground.
References
Tao (spear) Wikipedia(Text) CC BY-SA