Which definition of L do you mean?

  • Fifty n the cardinal number that is the product of ten and five
  • Fifty s being ten more than forty
  • L n the 12th letter of the Roman alphabet
  • Lambert n a cgs unit of illumination equal to the brightness of a perfectly diffusing surface that emits or reflects one lumen per square centimeter
  • Liter n a metric unit of capacity, formerly defined as the volume of one kilogram of pure water under standard conditions; now equal to 1,000 cubic centimeters (or approximately 1.75 pints)