There are 12 words that start with 'alde'.
| alder | alders | aldehyde |
| alderfly | alderman | aldermen |
| aldehydes | aldehydic | alderflies |
| aldermanic | alderwoman | alderwomen |
Note: These 12 words that start with 'alde' are found from the USA & Canada version of the tournament Scrabble word list.