factor - filter life
- feathered
- featheredge
- featheredge brick
- feature
- feature strip
- fecal
- feces
- feculence
- Federal aviation administration soil classification system
- Federal government project
- Federal Housing Administration
- Federal Water Pollution Control Administration
- fee
- fee curve
- fee plus expense agreement
- fee simple
- fee tail
- feed
- feed and expansion tank
- feed box