Meanings
proper noun
- One of 67 counties in Pennsylvania, United States. County seat: Pittsburgh.
Origin
Named after the Allegheny River.
Full word history & related roots →Cite this entry
APA
Allegheny County. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/Allegheny%20County
MLA
“Allegheny County.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Allegheny%20County. Accessed November 2, 2026.
Chicago
WatkinsX Dictionary, s.v. “Allegheny County,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/Allegheny%20County.
Source: Allegheny County on Wiktionary, CC BY-SA 4.0.