v. grumble, moan, groan, wail, grouse, carp (at), whimper, cry, lament, bemoan, Colloq gripe, squawk, grouch, Brit whinge, Slang bitch, beef, US kick: What are you complaining about now?
COMPLAIN
Meaning of COMPLAIN in English
Oxford thesaurus English vocab. Английский словарь Оксфорд тезаурус. 2012