There are 17 words that start with 'mouse'.
| mouse | moused |
| mouser | mouses |
| mousey | mousers |
| mousepad | mousebird |
| mouselike | mousepads |
| mousetail | mousetrap |
| mousebirds | mousetails |
| mousetraps | mousetrapped |
| mousetrapping | |
Note: These 17 words that start with 'mouse' are found from the USA & Canada version of the tournament Scrabble word list.