There are 18 9-letter words that start with 'fat'.
| fatalisms | fatalists | fatalness |
| fatefully | fatheaded | fathering |
| fathomers | fathoming | fatidical |
| fatigable | fatiguing | fatnesses |
| fatstocks | fatteners | fattening |
| fattiness | fatuities | fatuously |
Note: These 18 9-letter words that start with 'fat' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with fath, fatt, fata, fati, fats, fate, fatu, fatl, fatb, fatw, fatn.
4-letter words start with 'fat' (2)