advanced country, developed country

world

State of Japan (de facto official name of Japan, 1947 to present)

(rare) State of Japan (de facto official name of Japan, 1947 to present)

being advanced

one thing

a land, a large place / a country in general, a region / a country as in a nation, a state / the office of emperor, the crown; affairs of state / a province of ancient Japan

world / a metaphorical world (how one lives one's life) / society, the times / a realm, a circle, a sphere / (Buddhism) the four inner realms of 須弥山 (Shumisen) / (Buddhism) realm governed by a buddha

Japan

(archaic) Japan