Rock

Rock can be any of the following:

• In geology, a rock is a substance composed of minerals and classified according to mineral composition.
• In music, rock is a short form for the phrase "rock and roll", but also refers to a harder form of music derived from rock and roll. Like other music styles it has several lifestyles attached to it. See rock band.
• A small offshore islet lacking or with minimal soil.
• Any of several rivers called the Rock River.
• The Rock is slang for Alcatraz, a federal prison in San Francisco Bay, and about which an action movie was produced in 1995; see The Rock
• The Rock may also refer to Gibraltar.
• The Rock, professional wrestler for WWE, and actor
• Rock is a confectionery made and sold in many of the UK's seaside holiday resorts and labelled with the manufacturer's name. This candy is similar to a candy cane rather than rock candy.
• Slang for a jewel, usually understood to be a diamond. As in, "Did you get a load of that rock on her finger."
• ROCK is also a Linux distribution build kit, similar to source-based Linux distributions.
• rock is also slang for the drug cocaine.