Briefcase vs Case

When to use each in English, with meaning, register, and examples.

Briefcase

Top 3,000 (common)

Case

Top 1,000 (very common)A2noun
Most common: Case
 BriefcaseCase
Pronunciation🇬🇧 //ˈbriːfkeɪs//🇺🇸 //ˈbrifkeɪs//🇬🇧 /["/keɪs/"]/🇺🇸 /["/keɪs/"]/
MeaningA bag for carrying documents and papers.A situation or example.
ExampleHe opened his briefcase to reveal the important documents.Please put the documents in the case for safekeeping.
RegisterNeutralNeutral
How commonTop 3,000 (common)Top 1,000 (very common)
CEFR level-A2
Part of speechnoun
Collocationsopen a briefcase, close a briefcase, carry a briefcaseclassic, textbook, typical, illustrate, show, cite, arise, occur, study, example, in somebody’s/​this case, case of, case by case, a case in point, be, remain, overstate, classic, textbook, typical, illustrate, show, cite, arise, occur, study, example, in somebody’s/​this case, case of, case by case, a case in point, notorious, tragic, assault, handle, investigate, work on, file, report, officer, on the case, case of, court, criminal, civil, bring, prosecute, pursue, come before somebody, come to court, go to court, in a/​the case, case against, case of, a case to answer, no case to answer, the circumstances of a case, compelling, convincing, good, have, prepare, outline, exist, case against, case for, the case for the defence/​defense, the case for the prosecution, the merits of a case, carrying, packing, glass, in a/​the case, inside a/​the case, out of a/​the case, attaché, overnight, acute, chronic, advanced, diagnose, report, history, notes, records, case of
Antonyms-sameness, uniformity
Common mistakesConfused with 'suitcase', which is used for travel, Using 'briefcase' as plural without an 's' ending in informal contexts, Using 'briefcase' for bags that are not specifically designed for documentsConfused with 'case' as a container instead of a situation., Using 'case' without properly specifying what type of case (e.g., legal case, medical case).
Usage notesUsed in formal settings, commonly associated with professionals. Not typically used in casual contexts.Use 'case' to refer to a particular situation, especially in legal or medical contexts. It is less formal than 'instance' and more common in everyday conversation.

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Briefcase
Case

Frequently asked questions: Briefcase vs Case

What's the difference between Briefcase and Case?

Briefcase: A bag for carrying documents and papers. Case: A situation or example.

Which is more common: Briefcase and Case?

Case is the most common in everyday English.

Can you show an example of each?

Briefcase: He opened his briefcase to reveal the important documents. Case: Please put the documents in the case for safekeeping.

Can I use Briefcase and Case interchangeably?

Not always. Briefcase and Case are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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