Case vs Lawsuit

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

Case

Top 1,000 (very common)A2noun

Lawsuit

FormalTop 3,000 (common)C1noun
Most formal: LawsuitMost common: Case
 CaseLawsuit
Pronunciation🇬🇧 /["/keɪs/"]/🇺🇸 /["/keɪs/"]/🇬🇧 /["/ˈlɔːsuːt/"]/🇺🇸 /["/ˈlɔːsuːt/"]/
MeaningA situation or example.A legal case someone brings to court.
ExamplePlease put the documents in the case for safekeeping.The company faced a lawsuit for violating environmental regulations.
RegisterNeutralFormal
How commonTop 1,000 (very common)Top 3,000 (common)
CEFR levelA2C1
Part of speechnounnoun
Collocationsclassic, 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 offile a lawsuit, settle a lawsuit, win a lawsuit, lose a lawsuit, lawsuit against
Antonymssameness, uniformitysettlement, agreement, compromise
Common mistakesConfused with 'case' as a container instead of a situation., Using 'case' without properly specifying what type of case (e.g., legal case, medical case).Confused with 'suit' meaning clothing., Used in informal contexts, which sounds awkward., Misused 'lawsuit' as a verb.
Usage notesUse '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.Used in formal contexts, particularly in legal discussions. Not appropriate in casual conversations. Common in news articles about legal matters.

Frequently asked questions: Case vs Lawsuit

What's the difference between Case and Lawsuit?

Case: A situation or example. Lawsuit: A legal case someone brings to court.

Which is more formal: Case and Lawsuit?

Lawsuit is the most formal of these.

Which is more common: Case and Lawsuit?

Case is the most common in everyday English.

Are Case and Lawsuit the same CEFR level?

Case: A2, Lawsuit: C1 on the CEFR scale.

Can I use Case and Lawsuit interchangeably?

Not always. Case and Lawsuit 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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