Two letters used in various
alphabetic shorthand systems and slang abbreviations. For example:
1. In short form messaging, "
nn" is a stand in for "night night".
2. In law, it's shorthand for "notes" or "footnotes".
3a. In some MMORPGs, it's typically shorthand for "no need" ...3b. Not to be confused with its rare use in
data entry as shorthand for "need".
4. In data entry, this is usually shorthand for "Nōmen Nesciō", aka "No Name", to indicate an anonymous or unknown identity.
5. In anatomical notes, it may be used as shorthand for "nerves" (versus "n" for the singular).