aptronym UK /ˈæptɹəʊˌnɪm/US /ˈæptɹoʊˌnɪm/ noun1 •A name that is aptly suited to its owner.The latter after marrying Sir Ulick's steward becomes Mrs. M'Crule, an aptronym expressing her excessive bigotry in preventing the Catholic boy, Tommy Dunshaughlin, from attending a charity school. — 2004 formsaptronyms