1. A Saxon prefix signifying not before nouns or adjectives, and the reversal of the action or its undoing before verbs.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• nn,
• ln,
• uu,
• unk,
• kun,
• cn,
• unle,
• uncc,
• uy,
• upn,
• ue,
• ounc,
• unc,
• riun,
• kuni,
• unab,
• ug,
• una,
• imun,
• uopn

• Una,
• unh,
• unau,
• unio.

The adjective form of the word "un" is "unlucky".

The plural form of the word "un" is "uns"

The singular form of the word "un" is "one"