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1. Dictionary

   Rock

   /räk/

   

   noun

   • 1. the solid mineral material forming part of the surface of the earth and other similar planets, exposed on the surface or underlying the soil or oceans: "the beds of rock are slightly tilted"
   • ▪ a mass of rock projecting above the earth's surface or out of the sea: "there are dangerous rocks around the island" Similar cragclifftoroutcropoutcropping
   • ▪ any natural material, hard or soft (e.g. clay), having a distinctive mineral composition.
   • ▪ Gibraltar.
   • ▪ a name for Newfoundland informal Canadian
   • 2. a large piece of rock which has become detached from a cliff or mountain; a boulder: "the stream flowed through a jumble of rocks"
   • ▪ a stone of any size, especially one small enough to be picked up and used as a projectile: North American "the crowd threw a few rocks and dispersed" Similar boulderstoneinformal:goolie
   • ▪ a kind of hard confectionery in the form of cylindrical peppermint-flavored sticks: British "a stick of rock"
   • ▪ a precious stone, especially a diamond. informal Similar diamondprecious stonejewel
   • ▪ a small piece of crack cocaine: informal "crack sells for $20 a rock"
   • ▪ testicles. vulgar slang
   • 3. used to refer to someone or something that is extremely strong, reliable, or hard: "imagining himself as the last rock of civilization being swept over by a wave of barbarism" Similar foundationcornerstonesupportpropmainstaybackbonetower of strengthpillar of strengthbulwarkanchorsource of protectionsource of security
   • ▪ (especially with allusion to shipwrecks) a source of danger or destruction: "the new system is heading for the rocks"
   • 4. money. informal, dated US

   Word Origin Middle English: from Old French rocque, from medieval Latin rocca, of unknown ultimate origin.

   Derivatives

   • 1. rockless adjective
   • 2. rocklet noun
   • 3. rocklike adjective

   Scrabble Points: 10

   • R

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   • O

     1

   • C

     3

   • K

     5

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2. www.britannica.com › science › rock-geologyRock | Definition, Characteristics, Formation, Cycle ...

   www.britannica.com › science › rock-geology

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   Mar 28, 2024 · Rock, in geology, naturally occurring and coherent aggregate of one or more minerals. Such aggregates constitute the basic unit of which the solid Earth is composed and typically form recognizable and mappable volumes. The three major classes of rock are igneous, sedimentary, and metamorphic rock.

3. www.oxfordlearnersdictionaries.com › definition › englishrock noun - Definition, pictures, pronunciation and usage ...

   www.oxfordlearnersdictionaries.com › definition › english

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   Definition of rock noun from the Oxford Advanced Learner's Dictionary. rock. noun. /rɒk/ /rɑːk/ Idioms. hard material. [uncountable, countable] the hard solid material that forms part of the surface of the earth and some other planets. They drilled through several layers of rock to reach the oil.

4. dictionary.cambridge.org › us › dictionaryROCK | definition in the Cambridge Learner’s Dictionary

   dictionary.cambridge.org › us › dictionary

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   noun. uk / rɒk / us. rock noun (SUBSTANCE) Add to word list. B1. the hard, natural substance that forms part of the Earth's surface: a layer of volcanic rock. Fewer examples. They blasted a hole in the rock face. I'm too much of a wimp to go rock climbing. The house is built on a layer of porous rock.

5. www.thefreedictionary.com › rockRock - definition of rock by The Free Dictionary

   www.thefreedictionary.com › rock

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   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.

6. www.dictionary.com › browse › rockRock Definition & Meaning | Dictionary.com

   www.dictionary.com › browse › rock

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   Rock definition, a large mass of stone forming a hill, cliff, promontory, or the like. See more.

7. www.britannica.com › art › rock-musicRock | Definition, History, Artists, Songs, & Facts | Britannica

   www.britannica.com › art › rock-music

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   Apr 22, 2024 · Rock, form of popular music that emerged in the 1950s and that by the end of the 20th century was the world’s dominant form of popular music. It originated in the United States and spread to other English-speaking countries and across Europe in the 1960s.

8. www.collinsdictionary.com › dictionary › englishROCK definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › dictionary › english

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   Apr 27, 2024 · 1. uncountable noun. Rock is the hard substance which the Earth is made of. The hills above the valley are bare rock. A little way below the ridge was an outcrop of rock that made a rough shelter. 2. countable noun. A rock is a large piece of rock that sticks up out of the ground or the sea, or that has broken away from a mountain or a cliff .