what else

"Else" means "other things". It's often used with questions:

Who else is coming?

We should definitely go. When else will we get a chance to visit Spain?

"What else" means "what other things". You start a question with "what else" when you have some examples of things, but you want more:

What else should we bring?

What else can I say? I've already apologized multiple times.

This phrase appears in these lessons: