► 動詞
下す [くだす] [腹を下す] [coll] meaning: diarrhea rank: 2
☆ 脂っこいものを食べたらお腹を下した ⇨ I had a diarrhea after eating greasy food
下る [くだる] [腹が下る] [coll] meaning: diarrhea rank: 3
☆ 果物を食べすぎたらお腹が下った ⇨ I had a diarrhea after having too much fruits
► 名詞
下痢 [げり] meaning: diarrhea rank: 2
☆ 今朝下痢をした ⇨ I had a diarrhea this morning