There are 10 13-letter words that start with 'ae'.
| aerobiologies | aerodynamical |
| aeroembolisms | aeromechanics |
| aeromedicines | aesthetically |
| aestheticians | aestheticisms |
| aestheticized | aestheticizes |
Note: These 10 13-letter words that start with 'ae' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with aer, aes, aec, aet, aeo, aed, aeg, aen, aep, aeq.
4-letter words start with 'ae' (3)