There are 10 words that start with 'beas'.
| beast | beasts |
| beastie | beastly |
| beasties | beastings |
| beastlier | beastliest |
| beastliness | beastlinesses |
Note: These 10 words that start with 'beas' are found from the USA & Canada version of the tournament Scrabble word list.