key case
B1Neutral to informal for the physical object; formal for the pivotal instance meaning.
Definition
Meaning
A small protective container or pouch designed to hold keys.
A protective covering for keys; can also refer to a specific instance or situation that is crucial or pivotal (e.g., 'a key case in the investigation').
Linguistics
Semantic Notes
Primarily a compound noun referring to a physical object. The 'pivotal instance' meaning is less common and often appears in legal, academic, or investigative contexts.
Dialectal Variation
British vs American Usage
Differences
Both varieties use the term for the physical object. 'Key fob' is a more common synonym in American English for a small decorative holder. The pivotal instance meaning is used similarly in both.
Connotations
Neutral for the object. The object is often associated with practicality and organization.
Frequency
More frequent in British English for the physical object. In American English, 'key chain' or 'key ring' are often preferred for a set of keys, though 'key case' is understood.
Vocabulary
Collocations
Grammar
Valency Patterns
I put my keys in my [key case].She bought a leather [key case].The detective studied the [key case] in the evidence.Vocabulary
Synonyms
Strong
Neutral
Weak
Vocabulary
Antonyms
Phrases
Idioms & Phrases
- “A key case study”
- “It's a key case in point.”
Usage
Context Usage
Business
Rare. Possibly in manufacturing or retail of accessories.
Academic
Can appear in law or social sciences for 'a pivotal instance or example'.
Everyday
Common for referring to the physical object used to organize keys.
Technical
Not typically used in technical fields.
Examples
By Part of Speech
verb
British English
- (Not standard as a verb)
American English
- (Not standard as a verb)
adverb
British English
- (Not standard as an adverb)
American English
- (Not standard as an adverb)
adjective
British English
- (Not standard as an adjective)
American English
- (Not standard as an adjective)
Examples
By CEFR Level
- I keep my house key in a red key case.
- This is my new key case.
- I can't find my keys; I think I left the whole key case on the bus.
- She bought a leather key case to stop her keys scratching her phone.
- The witness's testimony provided a key case for the prosecution's argument.
- My key case has separate compartments for home, office, and car keys.
- The precedent set by this key case will influence copyright law for decades.
- The detective sifted through the evidence, knowing the missing key case could be pivotal.
Learning
Memory Aids
Mnemonic
Think of a CASE for your KEYS. Just like a phone case protects your phone, a KEY CASE protects your keys.
Conceptual Metaphor
CONTAINER FOR IMPORTANT OBJECTS (keys are metaphorically important for access).
Watch out
Common Pitfalls
Translation Traps (for Russian speakers)
- Avoid direct calque 'ключевой случай' for the physical object; that means 'key/pivotal incident'. For the object, use 'чехол для ключей', 'футляр для ключей'.
- Do not confuse with 'case' as in 'suitcase' ('чемодан').
Common Mistakes
- Using 'key case' to mean 'keychain' (which has dangling keys).
- Misspelling as 'keycase' (should be two words or hyphenated: key-case).
Practice
Quiz
In which context is 'key case' LEAST likely to be used?
FAQ
Frequently Asked Questions
It is typically written as two separate words ('key case'), though it can sometimes be hyphenated ('key-case'), especially when used as a compound modifier before a noun (e.g., 'a key-case manufacturer').
A key case is usually a enclosed pouch or holder that keys go inside. A keychain (or key ring) is a metal ring or linked chain that keys are attached to, often dangling freely.
Yes, though less common. It can refer to a crucial or representative instance of something, particularly in legal, academic, or business contexts (e.g., 'a key case study').
As a term for the physical object, it is moderately common, especially in British English. Words like 'key holder' or 'key pouch' are similar in frequency. The 'pivotal instance' meaning is more specialised.