There are 11 12-letter words that start with 'ae'.
| aerobicizing | aerodynamics | aeroembolism |
| aeromagnetic | aeromedicine | aeronautical |
| aerosolizing | aesthetician | aestheticism |
| aestheticize | aestivations | |
Note: These 11 12-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)