三さん塁るいさんるいCommon wordFreq.FrequencyTop 50,000Meanings1nounthird basebaseballBaseball term for the third base bag or the defensive position.ランナーが三さん塁るいに進すすんだ。The runner advanced to third base.彼かれは三さん塁るいを守まもっている。He is playing third base.