There are 11 words that start with 'excla'.
| exclaim | exclave | exclaims |
| exclaves | exclaimed | exclaimer |
| exclaimers | exclaiming | exclamation |
| exclamatory | exclamations | |
Note: These 11 words that start with 'excla' are found from the USA & Canada version of the tournament Scrabble word list.