rock
A1Universal (used across formal, informal, and technical registers with meaning shifts)
Definition
Meaning
A large, solid mineral mass; a hard, natural material forming cliffs and mountains.
A genre of music; a reliable person or thing; to move or cause to move gently back and forth; a small, hard sweet.
Linguistics
Semantic Notes
The word's core meaning (stone) is concrete and primary. Its metaphorical extensions are numerous, including music (rock 'n' roll), stability ('bedrock'), motion ('rock the boat'), and slang ('rock' for diamond).
Dialectal Variation
British vs American Usage
Differences
In UK English, 'rock' often refers to a type of hard stick-shaped sweet (e.g., 'peppermint rock'). In US English, this sweet is more likely called 'rock candy' or a specific brand name. 'Rock' as a genre term is used identically.
Connotations
UK: Stronger association with sweets, coastal geology. US: Slightly stronger primary association with music genre and as slang for a gemstone. The phrase 'on the rocks' (in trouble) is common in both.
Frequency
The noun meaning (stone) is extremely high-frequency in both. The music genre term is equally common. The sweet meaning is far more frequent in UK English.
Vocabulary
Collocations
Grammar
Valency Patterns
rock + object (to move something)rock + adverb/preposition (to move)be + rocked + by + event (to be shocked)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “Between a rock and a hard place”
- “Rock the boat”
- “On the rocks”
- “Solid as a rock”
- “Rock bottom”
Usage
Context Usage
Business
'The company's finances are on the rocks.' (in trouble); 'He's the rock of the department.' (reliable core).
Academic
In geology: 'Igneous rock forms from cooled magma.' In social studies: 'The scandal rocked the political establishment.'
Everyday
Literal: 'Don't throw that rock.' Musical: 'I love listening to rock.' Motion: 'She rocked the baby to sleep.'
Technical
Geology: classification (sedimentary, metamorphic). Engineering: ' bedrock stability.' Nautical: 'ship rocked by waves.'
Examples
By Part of Speech
verb
British English
- The explosion rocked the entire neighbourhood.
- She rocked the pram gently.
American English
- The scandal rocked the entire neighborhood.
- He rocked back and forth in his chair.
adverb
British English
- (Rare as pure adverb; usually part of phrasal verb or compound adjective)
American English
- (Rare as pure adverb; usually part of phrasal verb or compound adjective)
adjective
British English
- It was a classic rock anthem.
- They sought rock-solid guarantees.
American English
- He has a classic rock collection.
- We need rock-solid evidence.
Examples
By CEFR Level
- Children climbed on the big rock.
- I like rock music.
- The boat rocked on the water.
- The news of his resignation rocked the company.
- This old chair rocks a bit.
- They built the house on solid rock.
- The singer is a rock in times of trouble for her fans.
- The financial markets were rocked by the unexpected announcement.
- The geology lecture focused on metamorphic rock formations.
- The politician's career was rocked by allegations of misconduct, leaving him between a rock and a hard place.
- The new evidence provided a rock-solid foundation for the theory.
Learning
Memory Aids
Mnemonic
Imagine a huge ROCK in a field with a clock on top, ROCKing back and forth, playing loud ROCK music.
Conceptual Metaphor
STABILITY IS A ROCK ('He is my rock'), DIFFICULTY/OBSTACLE IS A ROCK ('hit a rock'), CAUSING INSTABILITY IS ROCKING ('rock the boat'), INTENSE EMOTION IS A PHYSICAL FORCE ('news rocked the community').
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- False friend: Russian 'рок' (rok) means 'fate' or 'doom', not the music genre. The music genre is 'рок' but is a direct loan, so meaning aligns. Beware of translating 'rock the baby' too literally; use 'укачивать' not 'качать' in the sense of swinging.
- Confusing 'rock' (большой камень, скала) with 'stone' (камень) which is more general.
- The idiom 'on the rocks' does not relate to geology but to trouble or a drink served with ice.
Common Mistakes
- Using 'rock' for every small stone (use 'stone' or 'pebble').
- Confusing 'rock' (v) with 'shake' (rock is smoother, slower).
- Misspelling 'rock and roll' as 'rock'n'roll' in formal writing.
Practice
Quiz
In British English, what is a common meaning of 'rock' that is less common in American English?
FAQ
Frequently Asked Questions
It can be both. As a material (e.g., 'The cliff is made of rock'), it's uncountable. As an individual piece (e.g., 'I threw a rock'), it's countable.
'Rock' usually refers to a larger mass or the natural material in situ ('a mountain rock'). 'Stone' is more general, often smaller, and can be worked ('a stone floor', 'a gemstone'). In everyday use, they are often interchangeable for small pieces.
Yes, with two main meanings: 1) to move gently back and forth (transitive or intransitive), and 2) to shock or disturb greatly (usually in passive: 'The community was rocked by the tragedy').
It is an adjective phrase meaning extremely stable, reliable, or certain (e.g., 'rock-solid alibi', 'rock-solid investment').