the East; the Orient; (East) Asia
the West; the Occident; Western countries
東洋と西洋の文化の違いを学ぶ。
I study the cultural differences between East and West.
彼は東洋医学にとても詳しい。
He is very well versed in Eastern medicine.
東洋の思想に興味があります。
I'm interested in Eastern philosophy.