Nu is the thirteenth letter of the Greek alphabet.(noun)
An example of nu is the glyph (symbol) used in vega, the financial calculation to measure sensitivity of an asset to volatility.
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."(interjection)
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.
See nu in Webster's New World College Dictionary
Origin: Gr ny < Sem, as in Heb nūn
See nu in American Heritage Dictionary 4
Origin: Greek nū
Origin: , of Phoenician origin; see nwn in Semitic roots.
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