n. large hollow in the side of a cliff, hill, etc., or underground. v. (ving) explore caves. C cave in 1 (cause to) subside or collapse. 2 yield, give up. [Latin cavus hollow]
n. large hollow in the side of a cliff, hill, etc., or underground. v. (ving) explore caves. C cave in 1 (cause to) subside or collapse. 2 yield, give up. [Latin cavus hollow]