There are 17 words that start with 'crat'.
| crate | cratch | crated | 
| crater | crates | craton | 
| craters | crating | cratons | 
| cratches | cratered | cratonic | 
| cratering | craterlet | craterings | 
| craterlets | craterlike | |
Note: These 17 words that start with 'crat' are found from the USA & Canada version of the tournament Scrabble word list.