三さん大だい都と市し

noun

the three major cities

Typically refers to Tokyo, Osaka, and Nagoya. Used in contexts like urban planning, demographics, or regional comparisons.

• 日本にほんの三さん大だい都と市しは東とう京きょう、大おお阪さか、名な古ご屋やです。

  Japan's three major cities are Tokyo, Osaka, and Nagoya.

• 三さん大だい都と市し圏けんの人じん口こうが増ふえ続つづけている。

  The population of the three major metropolitan areas continues to grow.