rock

verb
\ ˈräk \
rocked; rocking; rocks

Definition of rock 

(Entry 1 of 5)

transitive verb

1 : to move back and forth in or as if in a cradle

2a : to cause to sway back and forth a boat rocked by the waves

b(1) : to cause to shake violently

(2) : to daze with or as if with a vigorous blow a hard right rocked the contender

(3) : to astonish or disturb greatly the scandal rocked the community

3 : to rouse to excitement (as by performing rock music) rocked the crowd

4 informal : to wear, display, or feature (something striking, distinctive, or attractive) Carly Patterson is rocking a tight yellow T-shirt with jeans and high wooden sandals, belting her lyrics into a microphone. —Kate Hairopolous In the picture he's rocking a beard, a pair of shades and a striped t-shirt. —Sam Haysom

intransitive verb

1 : to become moved backward and forward under often violent impact also : to move gently back and forth

2 : to move forward at a steady pace also : to move forward at a high speed the train rocked through the countryside

3 : to sing, dance to, or play rock music

4 slang : to be extremely enjoyable, pleasing, or effective her new car rocks

rock the boat

: to do something that disturbs the equilibrium of a situation

rock

noun (1), often attributive

Definition of rock (Entry 2 of 5)

1 : a rocking movement

2 : popular music usually played on electronically amplified instruments and characterized by a persistent heavily accented beat, repetition of simple phrases, and often country, folk, and blues elements

rock

noun (2)

Definition of rock (Entry 3 of 5)

1 : distaff

2 : the wool or flax on a distaff

rock

noun (3)

Definition of rock (Entry 4 of 5)

1 : a large mass of stone forming a cliff, promontory, or peak

2 : a concreted mass of stony material also : broken pieces of such masses

3 : consolidated or unconsolidated solid mineral matter also : a particular mass of it

4a : something like a rock in firmness:

(1) : foundation, support

(2) : refuge a rock of independent thought … in an ocean of parochialism —Thomas Molnar

b : something that threatens or causes disaster often used in plural

5a : a flavored stick candy with color running through

b : rock candy sense 1

6 slang

a : gem

b : diamond

7a : a small crystallized mass of crack cocaine

b : crack sense 9

8 : the ball used in basketball

between a rock and a hard place or less commonly between the rock and the hard place

: in a difficult or uncomfortable position with no attractive way out

on the rocks

1 : in or into a state of destruction or wreckage their marriage is on the rocks

2 : on ice cubes bourbon on the rocks

Rock

geographical name
\ ˈräk \

Definition of Rock (Entry 5 of 5)

river 300 miles (483 kilometers) long in southern Wisconsin and northern Illinois flowing south and southwest into the Mississippi River at the city of Rock Island

Keep scrolling for more

Other words from rock

Noun (3)

rock adjective
rocklike \ˈräk-ˌlīk \ adjective

Synonyms for rock

Synonyms: Verb

daze, stun

Visit the Thesaurus for More 

Choose the Right Synonym for rock

Verb

shake, agitate, rock, convulse mean to move up and down or to and fro with some violence. shake often carries a further implication of a particular purpose. shake well before using agitate suggests a violent and prolonged tossing or stirring. an ocean agitated by storms rock suggests a swinging or swaying motion resulting from violent impact or upheaval. the whole city was rocked by the explosion convulse suggests a violent pulling or wrenching as of a body in a paroxysm. spectators were convulsed with laughter

Examples of rock in a Sentence

Verb

She gently rocked the baby to sleep. He rocked back and forth while he stood waiting. The boat rocked back and forth on the waves. An earthquake rocked the town. The building was rocked by an explosion. The news of the murders rocked the town. Their invention rocked the computer industry. The band rocked the crowd.
See More

First Known Use of rock

Verb

12th century, in the meaning defined at transitive sense 1

Noun (1)

1559, in the meaning defined at sense 1

Noun (2)

14th century, in the meaning defined at sense 1

Noun (3)

14th century, in the meaning defined at sense 1

History and Etymology for rock

Verb

Middle English rokken, from Old English roccian; akin to Old High German rucken to cause to move

Noun (2)

Middle English roc, from Middle Dutch rocke; akin to Old High German rocko distaff

Noun (3)

Middle English rokke, from Old French dialect (Norman & Picard) roke, from Vulgar Latin *rocca

Keep scrolling for more

Learn More about rock

Statistics for rock

Look-up Popularity

Time Traveler for rock

The first known use of rock was in the 12th century

See more words from the same century

Keep scrolling for more

More Definitions for rock

rock

verb

English Language Learners Definition of rock

: to move (someone or something) back and forth or from side to side

: to cause (something) to shake violently

: to cause (someone or something) to be upset or shocked

rock

verb
\ ˈräk \
rocked; rocking

Kids Definition of rock

 (Entry 1 of 3)

1 : to move gently back and forth or side to side

2 : to cause (something) to shake violently An earthquake rocked the town.

rock

noun

Kids Definition of rock (Entry 2 of 3)

1 : solid mineral deposits The bulldozer hit rock.

2 : a mass of stone The ship washed up on the rocks. I picked up a rock from the path.

rock

noun

Kids Definition of rock (Entry 3 of 3)

1 : a rocking movement

2 : popular music played on instruments that are amplified electronically

rock

noun
\ ˈräk \

Medical Definition of rock 

1 : a small crystallized mass of crack cocaine

2 : crack

called also rock cocaine

Keep scrolling for more

More from Merriam-Webster on rock

Thesaurus: All synonyms and antonyms for rock

Spanish Central: Translation of rock

Nglish: Translation of rock for Spanish Speakers

Britannica English: Translation of rock for Arabic Speakers

Britannica.com: Encyclopedia article about rock

Comments on rock

What made you want to look up rock? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

by word of mouth

Get Word of the Day daily email!

Test Your Vocabulary

Name that Food Quiz

True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!