Definition of mckinley:
(n) :
A female given name transferred from the surname.
(n) :
A male given name transferred from the surname, briefly popular in the US when William McKinley was President (1897-1901).
(n) :
A surname from Scottish Gaelic.
(n) :
A female given name transferred from the surname, of modern usage.
(n) :
(US, slang, rare) A United States five-hundred-dollar bill.
(n) :
(computing, historical, informal) A processor of Intel’s first Itanium 2 brand, code-named McKinley.