Definition of Capitol Hill in US English:

Capitol Hill

proper noun

  • 1The region around the Capitol building in Washington, DC.

    1. 1.1 Used in reference to the US Congress.
      ‘he has made a lot of enemies on Capitol Hill with his take-no-prisoners approach to policy and abrasive manner’

Pronunciation

Capitol Hill

/ˈkæpədl ˈhɪl//ˈkapədl ˈhil/