/\/\0/\/\.
/\/\=4 / \ / \
0= 1 +
/\/\=4 / \ / \
_
9
Easy.
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 renewable.
The nine letter word is riverbank.
tyrannous
Breathing?
evergreen
A nine letter word using those letters is boomerang.
ask questions
celebrate
roadblock
How about hot chocolate.