This is part of the Japanese alphabet
Na Ne No Nu
These are the only 2 letter words (in the English language) that start with N on scrabble-finder.
Na: A Scotish form of not.
Ne: According to the Internet Slang Dictionary, ne means Not.
No: opposite of yes :-)
Nu: the 13th letter of the Greek language.
and then there is nanu nanu. Can anyone tell me what this means and what planet it comes from?