Dictionary.com
Thesaurus.com

Allegheny

American  
[al-i-gey-nee] / ˌæl ɪˈgeɪ ni /

noun

  1. a river flowing NW from Pennsylvania into SW New York and then S through W Pennsylvania, joining the Monongahela at Pittsburgh to form the Ohio River. 325 miles (525 km) long.


Other Word Forms

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The Pirates have been a perpetual laughingstock ever since Barry Bonds ditched the Allegheny for the San Francisco Bay after leading Pittsburgh to the National League Championship Series in 1992.

From The Wall Street Journal • Apr. 9, 2026

The county executive explained the options: default, or refinance the bonds at a cost of $400 million to Allegheny County.

From Slate • Nov. 24, 2025

He eventually was carted off and taken to Allegheny General Hospital in critical condition.

From Los Angeles Times • Sep. 11, 2025

Allegheny County officials told the BBC that the group had come to apply for mail-in ballots and the officials reiterated that only US citizens can register to vote.

From BBC • Oct. 30, 2024

Ophie and her mother had gone to see one of the Allegheny River’s many dams after they’d arrived, a trip to sightsee a bit in their new home.

From "Ophie's Ghosts" by Justina Ireland

Vocabulary.com logo
by dictionary.com

Look it up. Learn it forever.

Remember "Allegheny" for good with VocabTrainer. Expand your vocabulary effortlessly with personalized learning tools that adapt to your goals.

Take me to Vocabulary.com