There are 13 words that start with 'aggres'.
| aggress | aggressed |
| aggresses | aggressor |
| aggressing | aggression |
| aggressive | aggressors |
| aggressions | aggressively |
| aggressivity | aggressiveness |
| aggressivities | |
Note: These 13 words that start with 'aggres' are found from the USA & Canada version of the tournament Scrabble word list.