There are 9 words that start with 'monor'.
| monorail | monorails | 
| monorchid | monorhyme | 
| monorchids | monorhymed | 
| monorhymes | monorchidism | 
| monorchidisms | |
Note: These 9 words that start with 'monor' are found from the USA & Canada version of the tournament Scrabble word list.