Definition of complaint:
electric charge, contagion, boot, question, holler, care, bleat, demurral, cathexis, rap, carp, difficulty, mission, kick, demur, distemper, rush, explosive charge, grouse, epidemic, ail, bitch, gripe, flush, whimper, heraldic bearing, unsoundness, moan, grumble, murmur, rant, exception, bursting charge, bearing, whinge, plaint, burster, thrill, trouble, lament, direction, expostulation, stink, grouch, remonstrance, distemperature, health, happy, beef, demurrer, guardianship, billing, yammer, kvetch, tutelage, fuss, armorial bearing, squawk, ill, miserere, commission, wail, bang, whine.
- disagreement (part of speech: noun)
- accusation (part of speech: noun)
disease (part of speech: noun)
- lawsuit (part of speech: noun)
- protest (part of speech: noun)