There are 16 words that start with 'spira'.
| spiral | spiraea | spirals |
| spirant | spiracle | spiraeas |
| spiraled | spirally | spirants |
| spiracles | spiraling | spirality |
| spiralled | spiracular | spiralling |
| spiralities | ||
Note: These 16 words that start with 'spira' are found from the USA & Canada version of the tournament Scrabble word list.