There are 8 10-letter words that start with 'rat'.
| ratcheting | ratemeters | ratepayers |
| rationales | rationally | rattletrap |
| rattlingly | rattooning | |
Note: These 8 10-letter words that start with 'rat' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with rati, ratt, rata, rate, rato, rath, ratc, ratl, ratf, rats, ratb.
4-letter words start with 'rat' (4)