1. a narrow horizontal shelf or projection from a wall, cliff, or other vertical surface
2. a narrow flat area on the side of a mountain or cliff

Examples

• The cat sat on the window ledge watching birds outside.
• He placed his keys on the narrow ledge above the door.
• The climbers rested on a rocky ledge halfway up the cliff.
• Snow accumulated on the ledge of the building.
• She carefully walked along the mountain ledge.
• Books were stacked on every available ledge in the room.
• The bird built its nest on a ledge under the bridge.