1. Expression of grief, regret, pain, censure, or resentment; lamentation; murmuring; accusation; fault-finding. I poured out my complaint before him. Ps. cxlii. 2. Grievous complaints of you. Shak. 2. Cause or subject of complaint or murmuring. The poverty of the clergy in England hath been the complaint of all who wish well to the church. Swift. 3. An ailment or dise...