There are 14 10-letter words that start with 'rai'.
| railbusses | railleries | railroaded |
| railroader | rainchecks | rainmakers |
| rainmaking | rainproofs | rainspouts |
| rainsquall | rainstorms | rainwashed |
| rainwashes | rainwaters | |
Note: These 14 10-letter words that start with 'rai' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with rain, rail, rais, raid, raia, raim, rait.
4-letter words start with 'rai' (5)