1. felt tip a pen with a writing tip made of felt
  2. flat-top having a flat or flattened upper surface
  3. field trip a group excursion for firsthand examination
  4. felt up change texture so as to become matted and felt-like
  5. filter tip an air filter on the end of a cigarette
  6. felt hat a hat made of felt with a creased crown
  7. flattop a closely cropped haircut; usually for men
  8. felted made by combining fibers with a binder using heat and pressure
  9. flat tire a deflated pneumatic tire
  10. felt-tip pen a pen with a writing tip made of felt
  11. flat cap a flat woolen cap with a stiff peak
  12. flat-topped having a flat or flattened upper surface
  13. felicity pleasing and appropriate manner or style
  14. fold up bend or lay so that one part covers the other
  15. flytrap a trap for catching flies
  16. facilitate make easier
  17. field day a day for outdoor athletic competition
  18. field poppy annual European poppy common in grain fields and often cultivated
  19. field pea variety of pea plant native to the Mediterranean region and North Africa and widely grown especially for forage
  20. field hut temporary military shelter