St. Clair

proper noun

A township in Lambton County, Ontario, Canada.

OriginFrench Claire ← Latin Sancta ← Italian Chiara →
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Meanings

proper noun

alternative St Clair · alternative Saint Clair · alternative Saint-Clair · alternative St-Clair · alternative St.-Clair

  1. alternativeAlternative form of Sinclair, a surname.
  2. alternativeAlternative form of Sinclair, a male given name.
  3. A township in Lambton County, Ontario, Canada.
  4. A city in St. Clair County, Michigan, United States.
  5. A small city in Blue Earth County, Minnesota, United States.
  6. A borough of Schuylkill County, Pennsylvania, United States.
  7. A neighbourhood of Pittsburgh, Pennsylvania, United States.

Origin

  1. ItalianChiara
  2. LatinSancta
  3. FrenchClaire
  4. EnglishSt. Clair

An abbreviation of Saint Clair, variant of Saint Clare under influence from French Claire, a calque of Latin Sancta Clara (“holy Clara”), chiefly in reference to Italian Chiara Offreduccio, St. Clare of Assisi. The placenames listed below are typically spelt St. Clair—abbreviated with punctuation—following North American practice.

More words from French, Latin, Italian

Full word history & related roots →
Cite this entry
APA

St. Clair. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/St.%20Clair

MLA

“St. Clair.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/St.%20Clair. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “St. Clair,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/St.%20Clair.

Source: St. Clair on Wiktionary, CC BY-SA 4.0.