user-defined key
A2neutral
Definition
Meaning
A small piece of shaped metal with incisions that is used to open locks or operate mechanisms.
A crucial element or factor for explanation, success, or access to something, such as a clue, solution, or controlling position; also, a lever on a keyboard.
Linguistics
Semantic Notes
The term shifts from a concrete, physical object (a metal key) to a highly abstract and metaphorical concept (the key to success), representing centrality and indispensability.
Dialectal Variation
British vs American Usage
Differences
Minor. 'Shift key' is universal. 'Caps lock key' is more common than 'capitals lock key'. In computing, 'key' is standard.
Connotations
Both share connotations of access, control, and essentiality. No significant divergence.
Frequency
Equally high-frequency in both varieties.
Vocabulary
Collocations
Grammar
Valency Patterns
key to + noun/gerund (The key to solving the puzzle)key + noun (key worker, key ingredient)verb + key (hold the key, provide a key)Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “the key to the city”
- “under lock and key”
- “keyed up (nervous)”
- “low-key”
Usage
Context Usage
Business
Refers to critical personnel ('key account manager'), strategic elements ('key performance indicator'), or vital information ('key data').
Academic
Used for central arguments ('key thesis'), primary sources, or explanatory principles ('a key to understanding the phenomenon').
Everyday
Primarily physical objects for locks, or metaphorical for important things ('the key to a happy marriage').
Technical
In computing: a button on a keyboard; in databases: a unique identifier ('primary key'); in music: a scale ('key of C major').
Examples
By Part of Speech
verb
British English
- He carefully keyed in the lengthy security code.
- The vandal keyed a deep scratch along the car's door.
American English
- She quickly keyed the data into the spreadsheet.
- The basketball player keyed in on his opponent's weaknesses.
adverb
British English
- (No common adverbial use)
American English
- (No common adverbial use)
adjective
British English
- She is a key witness for the prosecution.
- Investment in infrastructure is a key government priority.
American English
- He played a key role in the merger negotiations.
- Providing clean water is a key objective for the charity.
Examples
By CEFR Level
- I can't find my house key.
- Press the 'Enter' key on your keyboard.
- Hard work is often the key to success.
- We keep a spare key under the flower pot.
- Her testimony became the key piece of evidence that broke the case.
- The report highlights three key areas for development.
- The encryption key must be kept absolutely secret to ensure data security.
- His ability to remain calm under pressure was key to the mission's outcome.
Learning
Memory Aids
Mnemonic
Imagine a large, old-fashioned KEY. It's shaped like a person with a head (the bow), a body (the shank), and teeth (the bit) that fit perfectly into a lock. This perfect fit is what makes something the 'key' – it's the exact, essential piece needed.
Conceptual Metaphor
IMPORTANCE IS BEING A KEY; SOLUTIONS ARE KEYS; ACCESS IS POSSESSION OF A KEY. We conceptualize crucial elements as physical keys that unlock problems or opportunities.
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid translating 'key' as 'ключ' for computer keyboard keys; use 'клавиша'.
- The phrase 'the key to success' translates as 'ключ к успеху', not 'код' or 'решение'.
- In music, 'key' is 'тональность', not just 'нота'.
- A 'key ring' is 'брелок', not 'ключевое кольцо'.
Common Mistakes
- Incorrect preposition: 'the key *of* the door' (should be 'the key *to* the door').
- Overusing 'key' as an adjective where 'important' suffices.
- Confusing 'low-key' (adjective/adverb meaning modest/quiet) with 'low key' (noun phrase).
Practice
Quiz
Which sentence uses 'key' as an adjective?
FAQ
Frequently Asked Questions
'Key to' is far more common and suggests the thing being unlocked or solved (key to the mystery, key to success). 'Key for' is used when referring to a specific purpose or beneficiary (a key for the back door, essential for someone: 'This map is key for us').
Yes. It primarily means to enter data using a keyboard ('key in the numbers'), or to scratch a car with a key. In sports, it can mean to focus intently on an opponent ('key on the star player').
It is primarily countable (a key, two keys, the keys). When used metaphorically as an adjective ('of key importance'), it is not countable. The plural 'keys' can refer to a set of physical keys or, in music, to different tonalities.
'Low-key' (hyphenated) is an adjective or adverb meaning modest, restrained, or quiet, without fuss. E.g., 'We had a low-key wedding' or 'He announced the news low-key.' Do not confuse it with the noun phrase 'a low key' in music.