Preocupation or Preoccupation: How To spell?
The word Preocupation is misspelled against Preoccupation, meaning "The state of having the mind, attention, or inclination preoccupied."
Preoccupation has double "cc" is mispronounced as "c"Remember double 'CC' in between the strings Preo & upation which should not be misspelled with single 'C'
Wrong Spelling:  Preo-c-upation  Correct Spelling:  Preo-cc-upation 
Check more misspelled words of Preoccupation to spell it correct.