<p><strong>Noun</strong></p><ul><li>Usually catacombs.</li><li>An underground cemetery, especially one consisting of tunnels and rooms with recesses dug out for coffins and tombs.</li><li>The Catacombs, the subterranean burial chambers of the early Christians in and near Rome, Italy.</li><li>An underground passageway, especially one full of twists and turns.</li></ul><p><strong>End of Response</strong></p>