Allegheny
/ˌæləˈgeɪni/
proper noun
Britannica Dictionary definition of ALLEGHENY
1
the Allegheny River
also
the Allegheny
:
river in the U.S., in Pennsylvania and New York
2
the Allegheny Mountains
also
the Alleghenies
:
mountains in the U.S., in Pennsylvania, Maryland, Virginia, and West Virginia