Two closely related uses.

Two closely related uses兩個很接近的用法。

As a noun, an occidental is someone from the western part of the world — Europe or the Americas, on that old East/West map. As an adjective, it means “western” in the same cultural-geographic sense: occidental art, occidental medicine.

As a noun當名詞用時, an occidentaloccidental(西方人) is someone from the western part of the world指的是來自世界西方那部分的人 — Europe or the Americas在那張老舊的東西方地圖上，也就是歐洲或美洲, on that old East/West map。As an adjective當形容詞用時, it means 'western' in the same cultural-geographic sense意思是同樣這種文化地理意義上的「西方的」: occidental artoccidental art(西方藝術), occidental medicineoccidental medicine(西方醫學)。

It is formal, a little old-fashioned, and more at home in essays than in the street. People usually just say “Western” or “a Westerner.” Though actually, calling a person “an occidental” can sound as if you are sorting humans into East and West, which many people now find clumsy or dated; the adjective still turns up in academic writing.

It is formal, a little old-fashioned這個字很正式，也有點過時, and more at home in essays than in the street比較常出現在文章裡，不是路上會聽到的。People usually just say 'Western' or 'a Westerner'一般人通常只會說'Western'(西方的)或'a Westerner'(一個西方人)。Though actually不過其實, calling a person 'an occidental'把一個人叫做'an occidental' can sound as if you are sorting humans into East and West聽起來可能像是在把人分成東方和西方兩類, which many people now find clumsy or dated很多人現在會覺得這樣笨拙或過時; the adjective still turns up in academic writing不過這個形容詞在學術寫作裡還是會出現。