There are 12 11-letter words that start with 'fan'.
| fanatically | fanaticisms | fanaticized | 
| fanaticizes | fancinesses | fanfaronade | 
| fantabulous | fantasising | fantasizers | 
| fantasizing | fantastical | fantasyland | 
Note: These 12 11-letter words that start with 'fan' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with fant, fanc, fana, fanf, fang, fane, fann, fand, fano, fanl, fanw, fani, fanj, fanu, fanz, fans.
4-letter words start with 'fan' (4)