crack
B2Common across all registers from formal to highly informal, with some slang uses
Definition
Meaning
a line on a surface where something has broken but not separated completely; to break without separating into pieces
a sudden sharp noise; an attempt; a narrow opening; to find a solution to something difficult; to hit sharply; to break open; highly skilled (adjective); excellent (slang adjective); to fail under pressure; a potent form of cocaine
Linguistics
Semantic Notes
Highly polysemous word with meanings ranging from physical breaking to solving problems to drug references. The adjective 'crack' meaning 'excellent' is British informal. The drug meaning is highly sensitive.
Dialectal Variation
British vs American Usage
Differences
British English uses 'crack' informally to mean 'excellent' ('a crack team'). Americans use 'crack' more commonly for the drug. 'Crack on' (continue working) is primarily British.
Connotations
In UK, 'crack' as adjective has positive informal connotations. In US, drug association often colors other uses. 'Crack of dawn' equally common both regions.
Frequency
Verb meanings equally frequent. Adjective meaning 'excellent' much more common in UK. Drug reference more common in US media.
Vocabulary
Collocations
Grammar
Valency Patterns
crack [noun] opencrack under [pressure/stress]crack down on [something]crack [problem/code/case]crack a [joke/smile]Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “crack of dawn”
- “crack a joke”
- “crack the whip”
- “crack under pressure”
- “get cracking”
- “fair crack of the whip”
Usage
Context Usage
Business
to crack a market = to successfully enter; crack team = highly skilled group
Academic
crack propagation (materials science); crack the problem (mathematics)
Everyday
crack an egg; window cracked; crack a smile
Technical
fatigue crack (engineering); cracking process (chemistry)
Examples
By Part of Speech
verb
British English
- The ice began to crack under our feet
- She finally cracked the crossword puzzle
- We need to crack on with the project
American English
- Don't crack the window too wide
- He cracked under police questioning
- They're trying to crack the California market
adjective
British English
- He's a crack shot with that rifle
- They sent in a crack team of commandos
American English
- That was a crack performance last night
- She's a crack investigative reporter
Examples
By CEFR Level
- The glass has a small crack
- I heard a crack of thunder
- Be careful not to crack the eggs
- The wall cracked during the earthquake
- He cracked a funny joke at dinner
- We woke up at the crack of dawn
- Police are cracking down on illegal parking
- After hours of work, she finally cracked the problem
- The athlete cracked under Olympic pressure
- The encryption was so strong that nobody could crack it for decades
- Years of stress caused him to crack psychologically
- The prosecutor is trying to crack the defendant's alibi
Learning
Memory Aids
Mnemonic
Imagine an egg CRACKing when tapped - it breaks but doesn't completely fall apart, just like most meanings of this word involve partial breaking or solving.
Conceptual Metaphor
PROBLEMS ARE SOLID OBJECTS THAT CAN BE BROKEN ('crack the case'), PRESSURE CAUSES BREAKING ('crack under pressure'), BEGINNINGS ARE CRACKS OF LIGHT ('crack of dawn')
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Don't confuse with 'треск' (crackling sound) - 'crack' is the single sharp sound
- Russian 'взламывать' covers both 'crack' (code) and 'hack' (computer)
- 'Crack' as adjective (excellent) has no direct Russian equivalent
Common Mistakes
- Using 'crack' for complete destruction (it implies partial break)
- Confusing 'crack down on' (suppress) with 'crack up' (laugh hysterically)
- Using drug meaning in inappropriate contexts
Practice
Quiz
What does 'crack of dawn' mean?
FAQ
Frequently Asked Questions
No, it can be positive ('crack team'), neutral ('crack a window'), or negative ('crack under pressure'). Context determines connotation.
'Crack' usually implies partial breaking with pieces still connected, while 'break' can be complete. 'Crack' also has metaphorical uses ('crack a code') that 'break' doesn't share.
Yes, in British English it means 'excellent' or 'lively'. Less common in American English where it might be confused with the verb form.
Context makes meaning clear. In professional settings, the drug meaning rarely appears unless specifically discussing substance abuse. Use clearer alternatives like 'excellent' or 'highly skilled' if concerned.