Questions about example sentences with, and the definition and usage of "Stellar"

A: Stellar can mean "really amazing" or something like that.

Ex. You were stellar in your work yesterday!

Michael Jackson's performance was just stellar.

It can also mean "related to stars," because that's what that really means. Like, stellar topics in astronomy.

A: The singer gave a stellar performance. The word stellar means exceptional, excellent, very good

A: Stellar usually means something that is really excellent or great. Although its a bit of a dated word, and usually "awesome" or "cool" fits better.

"This is a stellar poundcake!"

Formally, it's an astronomical word, relating to stars. This is almost only used in academic settings.

"The stellar mass was too great."

A: Stellar means connected with the stars
excellent means very good; of high quality

A: excellent