cooperate, practiced, precocity, predicate
there is no 9 letter word starting with e and using all of the letters. but the word unscrambled is FORGETFUL.
Librarian is a 9 letter word that has letters BRAIN in it.
The nine letter word is riverbank.
The nine letter word is renewable.
A nine letter word using those letters is boomerang.
evergreen
Breathing?
tyrannous
/\/\0/\/\. /\/\=4 / \ / \ 0= 1 + /\/\=4 / \ / \ _ 9 Easy.
roadblock
The answer is extricate.
Forgetful.