Synonym: find fault, grumble, squawk. Similar words: complaint, complain about, plain, explain, plaintiff, complacent, complacency, lain. Meaning: [kəm'pleɪn] 
v. 1. express complaints, discontent, displeasure, or unhappiness 2. make a formal accusation; bring a formal charge.
v. 1. express complaints, discontent, displeasure, or unhappiness 2. make a formal accusation; bring a formal charge. 211 The prosess was laborious, but I had no reason to complain of the way it worked.
More similar words: complaint, complain about, plain, explain, plaintiff, complacent, complacency, lain, villain, comply, complete, complex, exemplar, completely, exemplary, compliance, complexity, accomplice, comply with, accomplish, complicity, compliment, implacable, accomplished, complicated, contemplate, accomplishment, accomplishments, maintain, flair.