There are 15 words that start with 'ira'.
| irade | irate |
| irades | irater |
| iracund | irately |
| iratest | irascible |
| irascibly | irateness |
| iratenesses | irascibility |
| irascibleness | irascibilities |
| irasciblenesses | |
Note: These 15 words that start with 'ira' are found from the USA & Canada version of the tournament Scrabble word list.