The only 15 letter word that can be spelled without repeating a letter is 'uncopyrightable'.

Random Facts

• The average person falls asleep in seven minutes.
  Human Facts
• No word in the English language rhymes with month, orange, silver or purple.
  Word and Language Facts
• James Doohan, who played Lt. Commander Montgomery Scott on Star Trek, was missing the entire middle finger of his right hand.
  Entertainment Facts
• The sentence 'The quick brown fox jumps over the lazy dog.' uses every letter in the alphabet. (Developed by Western Union to Test telex/two communications)
  Word and Language Facts
• Honey is the only food that doesn't spoil.
  Misc Facts
• The slogan on New Hampshire license plates is 'Live Free or Die.'  These license plates are manufactured by prisoners in the state prison in Concord.
  Misc Facts
• Camels have three eyelids to protect themselves from blowing sand.
  Animal Facts
• Cost of raising a medium-sized dog to the age of 11: £4000
  Misc Facts