1. a deep crack or fissure in a glacier
2. a breach in an embankment, levee, or dike

Examples

• The mountaineer carefully stepped around the deep crevasse in the glacier.
• Several climbers have fallen into hidden crevasses on this route.
• The earthquake opened a massive crevasse in the ice field.
• Engineers worked quickly to repair the crevasse in the levee.
• Floodwater poured through the crevasse in the embankment.
• The rescue team used ropes to extract the hiker from the crevasse.