Akademik

cave
1.
n. & v.
—n.
1 a large hollow in the side of a cliff, hill, etc., or underground.
2 Brit. hist. a dissident political group.
—v.intr. explore caves, esp. interconnecting or underground.
Phrases and idioms:
cave-bear an extinct kind of large bear, whose bones have been found in caves. cave-dweller = CAVEMAN. cave in
1 a (of a wall, earth over a hollow, etc.) subside, collapse. b cause (a wall, earth, etc.) to do this.
2 yield or submit under pressure; give up. cave-in n. a collapse, submission, etc.
Derivatives:
cavelike adj. caver n.
Etymology: ME f. OF f. L cava f. cavus hollow: cave in prob. f. E. Anglian dial. calve in
2.
int. Brit. schoolsl. look out! (as a warning cry).
Phrases and idioms:
keep cave act as lookout.
Etymology: L, = beware

Useful english dictionary. 2012.