American Dictionary

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Definition rock in American English

rock noun

noun
/rɑk/
1

the hard solid substance that forms part of the Earth's surface

Example

Rainwater flows through soil and porous rock to reach underground streams.

Example

We had to dig down through a twelve-inch layer of rock.

1.1

a large piece of stone lying on the ground

Example

She ran over the fallen rocks toward him.

Synonyms and related words
1.2

a small stone

Example

Protesters threw rocks at the police.

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1.3

a large piece of stone that rises up from the ground or from under the ocean

Example

a castle built on a big rock

Synonyms and related words
1.4

a group of rocks along the edge of the land or under the surface of the ocean

Example

The waves crashed against the rocks.

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Example

a rock star

Example

rock concerts

Synonyms and related words
Synonyms and related words
Example

Boris Johnson will continue to "throw rocks" at Theresa May's Chequers plan in the weeks running up to Tory conference.

Definition rock in American English