Edify
To instruct in order to improve
Didactic*
Intended to teach
Elucidate*
To make clear
Erudite*
Possessing great knowledge and scholarship
Esoteric*
Understood only by an elite group
Imbue*
To inspire or influence thoroughly
Indoctrinate
To instruct in certain principles and ideologies
Pedagogy*
The art of teaching
Pedantic*
Overly concerned with book learning or formal rules
Pundit*
A person of great learning about a particular topic