Debris is pronounced də-BREE (IPA /dəˈbriː/). The 's' is silent; say 'duh-BREE' with stress on the second beat.
IPA: /dəˈbriː/
Syllables: də · BREE
Common ESL mistake: Speakers pronounce the final 's' saying 'deb-riss'.
Tip: The 's' is silent; say 'duh-BREE' with stress on the second beat.