San Diego

US/ˌsæn diˈeɪ.ɡoʊ/

proper noun

A city, the county seat of San Diego County, California, United States.

Meanings

proper noun
  1. A city, the county seat of San Diego County, California, United States.

    “I like to put it simply,” says Randy “R Dub!” Williams, a late-night “slow jams” DJ from San Diego who’s also known as “the Sultan of Slowjamastan.” “I ran out of countries, so I created my own.”

    2023 June 8, Richard Collett, “He ran out of countries to visit, so he created his own”, in CNN, archived from the original on 26 Oct 2025
    1 more example

    The California counties include Alameda, Los Angeles, Sacramento, San Diego, San Francisco, San Bernardino, Ventura and others. Cities include Los Angeles, Oakland, San Francisco, San Diego, San Jose, Long Beach, Malibu, Culver City and Huntington Beach (see the full list below).

    2025 May 30, Mark Sternfield, “Trump administration targets California ‘sanctuary’ cities, counties”, in KTLA, archived from the original on 08 Jun 2025
  2. Any of several other places also named after Saint Diego.

Origin

  1. SpanishSan Diego
  2. EnglishSan Diego

Borrowed from Spanish San Diego (literally “Saint Didacus”). Diego is a unique name not derived from Santiago (“Saint James”).

Full word history & related roots →

Translations

Chinese Mandarin 聖迭戈 /圣迭戈, 聖地牙哥 /圣地牙哥
  • 聖迭戈 /圣迭戈 (Shèngdiégē)city in southwest California
  • 聖地牙哥 /圣地牙哥 (Shèngdìyágē)city in southwest California
Japanese サンディエゴ
  • サンディエゴ (Sandiego)city in southwest California
Latin Didacopolis, Urbs Sancti Didaci
  • Didacopoliscity in southwest California
  • Urbs Sancti Didacicity in southwest California
Cite this entry
APA

San Diego. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/San%20Diego

MLA

“San Diego.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/San%20Diego. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “San Diego,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/San%20Diego.

Source: San Diego on Wiktionary, CC BY-SA 4.0.