There are 11 words that start with 'acerb'.
| acerb | acerber | acerbic |
| acerbate | acerbest | acerbity |
| acerbated | acerbates | acerbating |
| acerbities | acerbically | |
Note: These 11 words that start with 'acerb' are found from the USA & Canada version of the tournament Scrabble word list.