window washing
/ˈwɪndoʊ ˌwɑʃɪŋ/
noun
- The job or activity of cleaning windows, especially on buildings.
- Window-washing can be dangerous when working on high skyscrapers.
- She hired a professional for the window-washing because the second-floor windows were hard to reach.
- He started a window-washing business that serves office buildings downtown.