Grandaughter or Granddaughter: How To spell?
The word Grandaughter is misspelled against Granddaughter, a noun meaning "The daughter of one's son or daughter."
Granddaughter has double "dd" is mispronounced as "d"Remember double 'DD' in between the strings Gran & aughter which should not be misspelled with single 'D'
Wrong Spelling:  Gran-d-aughter  Correct Spelling:  Gran-dd-aughter 
Check more misspelled words of Granddaughter to spell it correct.