Numismatics face value
• Music fah (in tonic sol-fa)
• symbol for femto- (prefix indicating 10^-15, as in fm , femtometre)
• (or f/, f:) Photog. f-number (ratio of the focal length of a lens to its aperture, as in f8 )
• (ital.) Physics , symbol for focal length
• foreign
• (ital.) Music forte (Italian; loudly)
• (ital.) Physics , symbol for frequency
• (ital.) Physical chem. , symbol for fugacity
• (ital.) Maths. , symbol for function (as in f(x))
• (ital.) Biochem. , symbol for furanose
• Chem. , Physics , indicating electron state l=3 (where l is orbital angular momentum quantum number)
• indicating the fifth vertical row of squares from the left on a chessboard