How do you say "I'm sorry for your loss" in Greek?
Like, if I was living in Greece and my friend's mom died, what would I say to my friend? What would be appropriate?

Question

Answer

You usually say "Συλλυπητήρια" or "Ζωή σε λόγου σας". 
You could check pronunciation for these phrases on this website: https://acapela-box.com/AcaBox/index.php

Answer

Συλλυπητήρια. Να ζήσετε  να το θυμόμαστε.