1. (

• complain ,
• kick ,
• plain ,
• sound_off ,
• quetch ,
• kvetch

) express complaints, discontent, displeasure, or unhappiness; "My mother complains all day"; "She has a lot to kick about" ;

2. (

• complain ,

) make a formal accusation; bring a formal charge; "The plaintiff's lawyer complained that he defendant had physically abused his client" ;