duchessdom noun2 •The condition or title of a duchess.Believe me, if Nan had liked duchessdom, none of this would be taking place. — 1993 •A region ruled by a duchess.The buskers gathered expectantly at their table, and presently the two came in, he who had thought a kingdom well lost for love, and she who had gained a duchessdom by it. — 1945 formsduchessdoms