also: サン・ディエゴ
noun
San Diego
Refers to the city of San Diego, California, USA. Used as a proper noun.
来月、サンディエゴに出張します。
I'm going on a business trip to San Diego next month.
Standard katakana spelling for the city name.
Variant spelling with a middle dot, sometimes seen in older or more formal contexts.
From English 'San Diego', borrowed directly into Japanese as a proper noun.