yu /juː/ noun3 •The letter Ю, ю. •An ancient Chinese wine-bucket, often having a decorative cover.A group of slenderer yu also survive from the Shang into the early Chou period, though they are rarer than the other design […] A yu with square body in the Hakuzuru Museum is the finest of these. — 1962 •(no longer used) Jade, nephrite or jadeite.The Yu, although of the hardness of rock crystal, is worked into an endless variety of forms […] — 1818 formsyus