There are 16 words that start with 'stir'.
| stir | stirk | stirp |
| stirs | stirks | stirps |
| stirpes | stirred | stirrer |
| stirrup | stirrers | stirring |
| stirrups | stirabout | stirrings |
| stirabouts | ||
Note: These 16 words that start with 'stir' are found from the USA & Canada version of the tournament Scrabble word list.