There are 19 words that start with 'cirr'.
| cirri | cirrus | cirrate |
| cirrose | cirrous | cirriped |
| cirrhosed | cirrhoses | cirrhosis |
| cirrhotic | cirriform | cirripede |
| cirripeds | cirrhotics | cirripedes |
| cirrocumuli | cirrostrati | cirrocumulus |
| cirrostratus | ||
Note: These 19 words that start with 'cirr' are found from the USA & Canada version of the tournament Scrabble word list.