i Register
In some senses, enlighten is marked as figuratively. Watch for register when choosing this word.
verb
To supply with light.
The sun enlightens the Earth.
To make something clear to (someone); to give knowledge or understanding to.
She tried to enlighten them about the rules of the program, but they remained belligerently and self-righteously ignorant.
Care to enlighten me, if you think I'm so benighted?