There are 15 words that start with 'roy'.
| royal | royals | royally |
| royalty | royster | royalism |
| royalist | roysters | royalisms |
| royalists | royalmast | royalties |
| roystered | royalmasts | roystering |
Note: These 15 words that start with 'roy' are found from the USA & Canada version of the tournament Scrabble word list.