head·ship 
(hĕdshĭp′)
(hĕdshĭp′)n.
1. The position or office of a head or leader; primacy or command.
2. Chiefly British The position of a headmaster or headmistress.
- fourpenny nail
- fourplex
- four-poster
- fourragère
- fourscore
- foursome
- foursquare
- foursquarely
- four-star
- fourteen
- fourteenth
- fourth
- fourth dimension
- fourth estate
- Fourth of July
- fourth quantum number
- fourth wall
- Fourth World
- Fourth-World
- four-way
- four-wheel drive
- four-wheeler
- Fouta Djallon
- fovea
- fovea centralis