- Nu is defined as a Yiddish expression of agreement, or is used to ask a simple question instead of using words such as "well" or "so."
An example of nu used as an interjection is when you say "Nu?" to ask why something that you have just been told is important.
- Nu is the thirteenth letter of the Greek alphabet.
An example of nu is the glyph (symbol) used in vega, the financial calculation to measure sensitivity of an asset to volatility.
nu definition by Webster's New World
Origin: Classical Greek ny ; from Semitic as in Classical Hebrew (language) nūn
- used to express surprise, agreement, acquiescence, resignation, etc.
- used to ask a question, with such meanings as “well?”, “so?”, or “so what?”
nu definition by American Heritage Dictionary
Origin: Greek nū, of Phoenician origin; see nwn in Semitic roots.
nu - Medical Definition