A formation of minerals, specifically: • The naturally occurring aggregate of solid mineral matter that constitutes a significant part of the earth's crust. • A mass of stone projecting out of the ground or water. • A boulder or large stone; or (US, Canada) a smaller stone; a pebble. • Any natural material with a distinctive composition of minerals. • A precious stone or gem, especially a diamond. • A large hill or island having no vegetation. • Something that is strong, stable, and dependable; a person who provides security or support to another. • A lump or cube of ice. • A type of confectionery made from sugar in the shape of a stick, traditionally having some text running through its length. • A crystallized lump of crack cocaine. • An unintelligent person, especially one who repeats mistakes. • An Afrikaner. • An extremely conservative player who is willing to play only the very strongest hands. • Any of several fish: • The striped bass. • The huss or rock salmon. • A basketball. • A mistake. • Synonym of stone. • A closed hand (a handshape resembling a rock), that beats scissors and loses to paper. It beats lizard and loses to Spock in rock-paper-scissors-lizard-Spock. • A cricket ball, especially a new one that has not been softened by use • A crystal used to control the radio frequency. • A cheap golf ball.