Noun f has 4 senses
  1. degree Fahrenheit, F - a degree on the Fahrenheit scale of temperature
    --1 is a kind of degree
  2. fluorine, F, atomic number 9 - a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
    --2 is a kind of chemical element, element; gas; halogen
    --2 is a substance of
     fluorite, fluorspar, fluor; fluorapatite; cryolite, Greenland spar
  3. farad, F - the capacitance of a capacitor that has an equal and opposite charge of 1 coulomb on each plate and a voltage difference of 1 volt between the plates
    --3 is a kind of capacitance unit
    --3 is a part of abfarad
    --3 has parts: millifarad
  4. F - the 6th letter of the Roman alphabet
    --4 is a kind of
    letter, letter of the alphabet, alphabetic character
    --4 is a member of Roman alphabet, Latin alphabet
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