disguise 和 pretend 和 conceal 的差別在哪裡？

He is in disguise. He is disguising as the teacher.
He is pretending. He is pretending as a teacher.

Disguise is more like using one's role/identity.
Pretend is faking your act/expression to a certain role.

hmmmmmm, just like James Bond is disguising himself as a businessman, he pretends to have a lot of money.


Conceal is more 'to cover' so that someone doesn't see you, or see your intention.

She is concealing her acne. She is concealing her real feeling.

From https://hinative.com/zh-TW/questions/1400465