There are 13 words that start with 'breec'.
| breech | breeched | 
| breeches | breeching | 
| breechings | breechblock | 
| breechcloth | breechclout | 
| breechblocks | breechcloths | 
| breechclouts | breechloader | 
| breechloaders | |
Note: These 13 words that start with 'breec' are found from the USA & Canada version of the tournament Scrabble word list.