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complain

/kəmˈpleɪn/ verb · British & US
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What does complain mean?

'Complain' is a verb meaning to express dissatisfaction, annoyance, or discomfort, whether through spoken words, written statements, or formal channels of grievance. It covers everything from casual grumbling—a friend complaining about the weather—to official action, such as complaining to a company about faulty goods or filing a formal complaint with an authority. A closely related medical sense involves reporting symptoms: a patient may complain of a headache or chest pain. The word derives from the Latin 'complan gere,' meaning to beat or lament together, transmitted through Old French, and shares deep roots with words like 'plaint' and 'plaintive.' Its derivatives include the noun 'complaint.' While complaining is often viewed negatively, particularly when it becomes habitual whining, the act itself serves a valuable social function: voicing problems is how grievances are aired, wrongs are corrected, and standards are upheld. Common synonyms include protest, object, and grumble, each varying in tone and intensity.

verb

To express dissatisfaction, pain, or annoyance about something, either aloud or in writing; to formally state that something is wrong or unsatisfactory.

Senses
  1. To express dissatisfaction or annoyance about something, especially verbally or in writing
  2. To report symptoms of pain or illness, as in medical contexts ('complain of a headache')
Example

"She complained to the manager about the cold soup."

More examples

"Passengers complained loudly when the flight was delayed for a third time."

"The patient complained of persistent pain in her lower back."

Did you know?

The word 'complain' descends from the Latin 'complan gere'—literally to 'beat together'—so every complaint you've ever made carries an echo of an ancient word for striking a blow.

Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.

Etymology of complain

The verb 'complain' traces back to the Latin 'complan gere,' meaning to beat or strike together, which came to signify lamentation in medieval Latin. It entered English through Old French 'complaindre' around the late 14th century, initially carrying strong connotations of mourning and lament before shifting toward its modern sense of expressing dissatisfaction. Its Latin root also gives English the legal terms 'plaint' and 'plaintiff,' reflecting the word's long association with formally voiced grievances.

Related word forms

How complain is actually used

'Complain' typically implies a degree of grievance and can carry a slightly negative connotation when describing habitual grumbling, as in 'stop complaining.' In formal and legal registers, it means lodging an official grievance. In medical usage, 'complain of' refers specifically to reporting physical symptoms rather than general dissatisfaction.

Easily confused with complain

complaint

'Complain' is the verb expressing dissatisfaction, while 'complaint' is the noun naming the statement or grievance itself.

What's another word for complain?

Words and phrases paired with complain

complain aboutcomplain ofcomplain to

What's the opposite of complain?

Rhymes with complain