Engage an enemy vs an enemy engages you

[Gandalf_ 60]

Is this the same thing for the purpose of triggering "engagement" related card effects? 

The rules state: Note that any time an engagement occurs (either by player option, by an engagement check, or by a card ability), the end result is the same: the player is considered to have engaged the enemy and the enemy is considered to have engaged the player. 
 

So a card like the Elder Nameless Thing triggers its forced effect both when you optionally engage it and when it engages you via an engagement check?

[Miceldars 24]

Yes, no matter the way the enemy engages you, its effect will trigger.

[Gandalf_ 60]

Thanks for that. I was taking the wording too literally.