There are 12 words that start with 'ironw'.
| ironware | ironweed | ironwood |
| ironwork | ironwares | ironweeds |
| ironwoman | ironwomen | ironwoods |
| ironworks | ironworker | ironworkers |
Note: These 12 words that start with 'ironw' are found from the USA & Canada version of the tournament Scrabble word list.