Claim vs Complaint

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

Claim

Top 1,000 (very common)B1verb

Complaint

Top 2,000 (common)B1noun
Most common: Claim
 ClaimComplaint
Pronunciation🇬🇧 /["/kleɪm/","/kleɪmz/","/kleɪmd/","/ˈkleɪmɪŋ/"]/🇺🇸 /["/kleɪm/","/kleɪmz/","/kleɪmd/","/ˈkleɪmɪŋ/"]/🇬🇧 /["/kəmˈpleɪnt/"]/🇺🇸 /["/kəmˈpleɪnt/"]/
MeaningTo say that something is true or to assert something.A statement saying that something is wrong or not good.
ExampleShe decided to claim her inheritance after the will was read.I filed a complaint with the manager about the poor service.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 2,000 (common)
CEFR levelB1B1
Part of speechverbnoun
Collocationsjustifiably, legitimately, rightfully, attempt to, try to, back, be able to, be entitled to, can, on, back, be able to, be entitled to, can, onserious, common, familiar, have, bring, file, arise, concern something, relate to something, complaint procedure, complaints procedure, complaint system, complaint about, complaint against, complaint from, cause for complaint, grounds for complaint, a chorus of complaint, minor, chronic, common, have, suffer from
Antonymsdeny, revoke, rejectpraise, compliment
Common mistakesUsing 'claim' as a noun without context, e.g. 'I have a claim.', Confusing 'claim' with 'proclaim' when meaning to declare something publicly., Misusing 'claim' with non-specific subjects, e.g. 'He claims that he is best.'Using 'complaint' as a verb (it is a noun)., Confusing 'complaint' with 'complaining' (the action of expressing dissatisfaction)., Omitting the article 'a' before 'complaint' when necessary.
Usage notesUse 'claim' when stating something you believe is true. It's appropriate in discussions, debates, and legal contexts. Avoid in casual conversations where less assertive language is preferable.Use 'complaint' in contexts where someone expresses dissatisfaction. It's appropriate in both spoken and written forms but should be avoided in very casual settings.

See it in real clips

Claim

Frequently asked questions: Claim vs Complaint

What's the difference between Claim and Complaint?

Claim: To say that something is true or to assert something. Complaint: A statement saying that something is wrong or not good.

Which is more common: Claim and Complaint?

Claim is the most common in everyday English.

Are Claim and Complaint the same CEFR level?

Claim: B1, Complaint: B1 on the CEFR scale.

What part of speech are Claim and Complaint?

Claim: verb, Complaint: noun.

Can you show an example of each?

Claim: She decided to claim her inheritance after the will was read. Complaint: I filed a complaint with the manager about the poor service.

Can I use Claim and Complaint interchangeably?

Not always. Claim and Complaint 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.

Related comparisons