There are 12 13-letter words that start with 'fra'.
| fractionalize | fractionating | 
| fractionation | fractionators | 
| fractiousness | fragmentarily | 
| fragmentating | fragmentation | 
| fragmentizing | frankincenses | 
| franticnesses | fraternalisms | 
Note: These 12 13-letter words that start with 'fra' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with fran, frac, frag, frat, fram, frau, frai, frap, fraz, fray, frae, frak, fras, frax, frab.
4-letter words start with 'fra' (5)