- For other uses, see Nu.
Nu (upper case Ν, lower case ν) is the 13th letter of the Greek alphabet. In the system of Greek numerals it has a value of 50. Its Latin Alphabet equivalent is N.
The word nu is written νῦ in traditional Greek polytonic orthography. In Modern Greek it is sometimes written νι (ni). Either version is pronounced [ni].
The lower-case letter ν is used as a symbol for:
See also