tao n. /'tau̇/ (/daʊ;/, /taʊ/) or /'dau̇/ (/daʊ/): the unconditional and unknowable source of the universe that transcends reality which is to be followed for a life of harmony. From the Chinese:道; pinyin:[Dào] signifying 'way', 'path', 'route', 'road' or sometimes more loosely 'doctrine', 'principle' or 'holistic beliefs'.