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English Vocabulary tips & definition with Gymglish.
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to complain (about sthg, to sbdy): to criticize, to find fault with (something, to somebody)
To complain is usually followed by about or of:
Luna always complains about the smell in the bathroom, but despite all her talk, she doesn't do anything about it.
Kevin Connors complained about the bad working conditions in the factory.
a complaint: a protest, an accusation, a criticism, a problem
His only complaint about the restaurant: the service was terrible.
to file a complaint to officially register, log, report a criticism

Pronunciation examples
UK: I made a complaint about the choice of the music.
US: You're always complaining about your problems!

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