There are 9 words that start with 'dino'.
| dino | dinos | 
| dinosaur | dinosaurs | 
| dinothere | dinotheres | 
| dinosaurian | dinoflagellate | 
| dinoflagellates | |
Note: These 9 words that start with 'dino' are found from the USA & Canada version of the tournament Scrabble word list.