1. an underground chamber or vault, especially one used for burial in ancient times
Usage: archaeology

Examples

• The archaeologists discovered a Roman hypogeum beneath the ancient city.
• The hypogeum contained elaborate frescoes and burial chambers.
• Malta’s Hal Saflieni Hypogeum is a UNESCO World Heritage site.
• The underground hypogeum served as a burial place for wealthy families.
• Visitors can tour the restored hypogeum to see ancient burial practices.
• The hypogeum’s stone carvings revealed details about early religious beliefs.