Nu Definition

no͝o, nyo͝o
noun
The thirteenth letter of the Greek alphabet (Ν, ν)
Webster's New World

A measure of constringence in lenses or prisms.

Wiktionary
abbreviation
Numbers.
Webster's New World
Nunavut.
Webster's New World

The ccTLD for Niue as assigned by the IANA.

Wiktionary
interjection
Used to express surprise, agreement, acquiescence, resignation, etc.
Webster's New World
Used to ask a question, with such meanings as “well?”, “so?”, or “so what?”
Webster's New World
adjective

(slang spelling) New.

Wiktionary

Origin of Nu

  • Greek of Phoenician origin nwn in Semitic roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Name for the letter of the Greek alphabet Ν (N) and ν (n).

    From Wiktionary

  • From Yiddish נו.

    From Wiktionary

  • Corruption of new.

    From Wiktionary