There are 22 6-letter words that start with 'rat'.
| ratals | ratans | ratany | ratbag | ratels | 
| raters | rather | ratify | ratine | rating | 
| ration | ratios | ratite | ratlin | ratoon | 
| rattan | ratted | ratten | ratter | rattle | 
| rattly | ratton | |||
Note: These 22 6-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)