B1
a large hole in the side of a hill, cliff or mountain, or one that is underground
Dictionary examples:
The bear's cave was so big, it had a living room and kitchen! (0.0)
I found a cave full of chocolate! It's like Willy Wonka moved underground. (0.0)
The cave was so deep, we needed a map to find our sandwiches! (0.0)
The area is also home to one of the largest underground cave and lake systems in Latin America. (65.7)