利器 りき Meanings Noun sharp-edged tool; sharp weapon Antonym: 鈍器 (どんき). convenience; facility See also: 文明の利器 (ぶんめいのりき). superior talent; outstanding ability Kanji 利 benefit. Read as リ. 器 device. Read as キ. Words containing 利器 文明の利器 (ぶんめいのりき) modern convenience Jinuma: Japanese Dictionary · Word lists