There are 21 11-letter words that start with 'nu'.
Note: These 21 11-letter words that start with 'nu' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with nut, num, nuc, nud, nur, nub, nul, nun, nuz, nup, nug, nuk, nua, nui, nus.
3-letter words start with 'nu' (4)