There are 21 words that start with 'beat'.
| beat | beats | 
| beaten | beater | 
| beaters | beatify | 
| beating | beatnik | 
| beatable | beatific | 
| beatings | beatless | 
| beatniks | beatified | 
| beatifies | beatitude | 
| beatifying | beatitudes | 
| beatifically | beatification | 
| beatifications | |
Note: These 21 words that start with 'beat' are found from the USA & Canada version of the tournament Scrabble word list.