Meaning of the word "complain about" in English

What does "complain about" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

complain about

US /kəmˈpleɪn əˈbaʊt/
UK /kəmˈpleɪn əˈbaʊt/

Phrasal Verb

to express dissatisfaction or annoyance about something

Example:
She always complains about the weather.
He complained about the poor service at the restaurant.