Originally Posted by Dictionary.com
rock1 ( P ) Pronunciation Key (rk)
n.
1)Relatively hard, naturally formed mineral or petrified matter; stone.
2)
a. A relatively small piece or fragment of such material.
b. A relatively large body of such material, as a cliff or peak.
3) A naturally formed aggregate of mineral matter constituting a significant part of the earth's crust.
4) One that is similar to or suggestive of a mass of stone in stability, firmness, or dependability: The family has been his rock during this difficult time.
5) rocks Slang. Money.
6) Slang. A large gem, especially a diamond.
7) Slang. Crack cocaine.
8)
a. A varicolored stick candy.
b. Rock candy.