In English the largest word you can make is woaded, which uses six of the seven letters. There are no valid seven-letter combinations from the pattern a d d e h o w.
Daydream.
hared, heard
The longest possible word is RADIOSONDE, which is ten letters long and is a unit of measurement for weather balloons. There's no word that can be made with all of those letters.
No one with these 7 letters in English. In French, there is "dardent".
There is no single English word you can make using all those letters only one time.
Using all the letters in one word, Nothing.
valid
There isn't one. You can make the 5 letter word bound
hairdo
In English the largest word you can make is woaded, which uses six of the seven letters. There are no valid seven-letter combinations from the pattern a d d e h o w.
Mad Hopping.
Daydream.
centrifuge
hared, heard
Divots
Sized