1.noun (common) (futsuumeishi); noun or participle which takes the aux. verb suru
riding together; sharing a car (taxi, etc.); ridesharing
2.noun (common) (futsuumeishi); noun or participle which takes the aux. verb suru
doing in collaboration
3.noun (common) (futsuumeishi); noun or participle which takes the aux. verb suru
backing of the same candidate by different political parties