complaint - an expression of grievance or resentment

go, locomote, move, travel - change location; move, travel, or proceed; "How fast does your new car go?"; "We travelled from Rome to Naples by bus"; "The policemen went from door to door looking for the suspect"; "The soldiers moved towards the city in an attempt to take it before night fell"

grizzle, yammer, yawp, whine - complain whiningly

mouth, speak, talk, verbalise, verbalize, utter - express in speech; "She talks a lot of nonsense"; "This depressed patient does not verbalize"

kvetch, plain, quetch, complain, sound off, kick - express complaints, discontent, displeasure, or unhappiness; "My mother complains all day"; "She has a lot to kick about"

snivel, whine - talk in a tearful manner