There are 14 words that start with 'mastic'.
| mastic | mastics |
| mastiche | masticate |
| mastiches | masticated |
| masticates | masticator |
| masticating | mastication |
| masticators | masticatory |
| mastications | masticatories |
Note: These 14 words that start with 'mastic' are found from the USA & Canada version of the tournament Scrabble word list.