the GNU version of the Collaborative International Dictionary of English
adj. One.
The Century Dictionary and Cyclopedia
n. A Middle English form of one.
n. An occasional Middle English form of un-.
Word Usage
"The product you saw is called Kin no Unko (The Golden Poo), a name that plays on the fact that the Japanese word for poop (unko) starts with the same "oon" sound as a completely unrelated word that means "luck.""