Most outside the Order call her General Unduli. She doesn't like that title—it reminds her of her role in the war that never should have been.

To most of the Jedi, she's Master Unduli, Master Luminara. Those are better; they're more Jedi-like, more… peaceful.

With Barriss, though, she's just Master.

And if she needs have a title, she likes that one the best.

There are many Jedi masters, but Luminara is the one and only that Barriss ever addresses simply as Master, and somehow, that feels special. It's the same whenever Luminara calls Barriss Padawan.

(My master.)

(My padawan.)