1) 1階いっかい #7,758 Link copied! Common いっかい [0] Parts: 1 階 Meaning Shirabe ① Noun first floor; ground floor 1階いっかい席せきが欲ほしいのです。 I'd like seats on the first floor. ② Noun one floor; one storey ③ Noun one rank Kanji 階 カイ storey, stair, counter for storeys of a building Forms 一階#7,758一階いっかい1階#9,2061階いっかいいっかいいっかい