(dated) Short for ブエノスアイレス州 (Buenosu Airesu-shū, “Buenos Aires (a province of Argentina)”).

(dated) BC, British Columbia (a state of Canada)

(obsolete) Colorado (a state of the United States)

(obsolete) Idaho (a state of the United States)

(historical) Kōzuke (a province of Japan) / (by extension, poetic) Gunma (a prefecture of Japan)

(historical) Kwantung Leased Territory (a concession in China)

the five continents (Asia, Europe, Africa, Australia and Americas)

I don't speak Japanese

I'm a Muslim

I'm Jewish