Denshi Jisho — Online Japanese dictionary

Found 5 sentences.

富士日本一高いです Mt. Fuji is the highest mountain in Japan.
彼女日本一周旅行した She traveled round Japan.
そのビル日本一高い建物です That building is the tallest in Japan.
東京日本一大きい都市、24時間目覚めている Tokyo, which is the largest city in Japan, is awake 24 hours.
いくらだけ日本一にして中身三流やったらな〜ん意味ないんちゃう The container may be the best in Japan, but if the contents are third class, then isn't it completely meaningless?