General English

General Science

  • noun a mass of rock, especially an isolated or projecting one


  • noun a solid mineral substance which forms the outside crust of the earth


  • Slang for Sheetrock®, a well-known brand name of drywall.

Media Studies

  • noun a style of popular music, derived from rock and roll, usually played on electric or electronic instruments and equipment
  • verb to sing, play or dance to music, especially to rock music
  • verb to have or play music with a strong solid beat


  • noun a hard mineral substance, forming part of the earth’s surface


  • noun crack, cocaine. The term has been used for many years by dealers and users to denote any crystalline preparation of a narcotic. In the USA in the late 1980s, rock is the most widespread generic term for crack among law-enforcers and breakers.
  • verb to be exciting, cool. The usage began as an Americanism but is now heard in all English-speaking areas. In the USA it sometimes occurs in the form ‘rock out’.

Origin & History of “rock”

English has two words rock, both of uncertain origin. The older, ‘sway’ (11th c.), goes back to a prehistoric Germanic base *rukk- ‘move’, which also produced German rücken ‘move’ and Dutch rukken ‘pull, jerk’, but beyond that its trail goes cold. Rock ‘stone’ (14th c.) was borrowed from Old French rocque. this has relatives in Italian rocca and Spanish roca, but where it ultimately came from is not known. The French word is also the ultimate source of English rococo.