参院 さんいん House of Councillors (upper house of the… #485 Meanings noun, abbreviation House of Councillors (upper house of the National Diet of Japan) Its kanji 参 サン、シン · まい.る、まい-、まじわる、みつ nonplussed, three (in documents), going, coming, visiting, visit, be defeated, die, be madly in love, participate, take part in 院 イン Inst., institution, temple, mansion, school