Nu

Greek alphabet letter. As a Greek numeral it represents a value of 50.

Written Ν and ν (or for older browsers, approximately "N" and "v")

"NU" is the ISO 3166 two-letter country code for Niue.

General Yiddish interrogative as in "So, nu?"

"nu" stands for "naked" in French and for "now" in Dutch and Swedish.

In Canada "NU" represents the postal designation for the territory of Nunavut.

Also used as a short form of new, as in Nu Metal, Nu Jazz, and (I guess so) Nupedia