上じょう院いんじょういんCommon word›Freq.FrequencyTop 10,000Meanings1nounupper house; upper chamber; senateRefers to the upper house of a bicameral legislature, such as the House of Councillors in Japan or the Senate in the US. Often contrasted with 下院 (lower house).See also: 下院日本にほんの上じょう院いんは参さん議