There are 17 9-letter words that start with 'rai'.
| railbirds | railbuses | railheads |
| railroads | rainbands | rainbirds |
| raincheck | raincoats | raindrops |
| rainfalls | raininess | rainmaker |
| rainproof | rainspout | rainstorm |
| rainwater | raiseable | |
Note: These 17 9-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)