The word is elan.
Exuberant
A word that starts with E and ends with A: extravaganza.
glee
Possibly, the word "everyone". That includes all people.
"Administrator" is a word that means leader and starts with the letter a.
enigma
exquisite
enjoyable
*
erase
emancipated
The word is elan.
exited
Expedient excellerate
Exuberant
The two-letter word that means "us" is "we."