There are 17 10-letter words that start with 'arr'.
| arraigners | arraigning | arrearages |
| arrestants | arrestment | arrhythmia |
| arrhythmic | arrivistes | arrogances |
| arrogantly | arrogating | arrogation |
| arrogators | arrowheads | arrowroots |
| arrowwoods | arrowworms | |
Note: These 17 10-letter words that start with 'arr' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with arro, arra, arre, arri, arrh.
5-letter words start with 'arr' (4)