There are 14 words that start with 'cemen'.
| cement | cementa | cements | 
| cemented | cementer | cementum | 
| cementers | cementing | cementite | 
| cementums | cementites | cementation | 
| cementations | cementitious | |
Note: These 14 words that start with 'cemen' are found from the USA & Canada version of the tournament Scrabble word list.