(archaic) White or pale; without colour. / Free from writing, printing, or marks; having an empty space to be filled in / (figuratively) Lacking characteristics which give variety; uniform.

(uncountable) The Romanization of Standard Mandarin using the Pinyin system. / (countable) An instance of Pinyin text.

(mathematics) Either of two mathematical constants that express ratios in a bifurcation diagram for a nonlinear map.

Unlimited power; commonly attributed to a deity or deities.