Spanish phrase
Por cierto.
Meaning
By the way.
When to use it
A short prompt to change the subject. Used to shift topics or add a remembered point in informal conversation among friends or colleagues, with a light casual tone.
Example dialogue
Por cierto.
By the way.
La reunión es a las 15:00 en la sala 3.
The meeting is at 3:00 PM in room 3.