central part or heart, especially of a city

Tokyo (a prefecture, the capital city of Japan, consisting of 23 special wards) / Short for 東京都 (Tōkyō-to) the capital prefecture of Japan

(historical) an eastern capital

(historical) the capital of 東漢 (Tōkan, “Eastern Han”) or 後漢 (Gokan, “Later Han”), corresponds to modern Luoyang / (historical) the capital of 北宋 (Hokusō, “Northern Song”), corresponds to modern Kaifeng

(historical) Tonkin (northern region of Vietnam)

center, middle, heart, core (physical center) / center, hub (most important area of activity) / crux, main point

(chiefly women's speech) first person singular pronoun: I, me

work (place where one is employed), workplace

(polite) first-person singular pronoun: I, me

a personal or private matter / (by extension) selfishness