Iruption or Irruption: How To spell?
The word Iruption is misspelled against Irruption, meaning "Sudden invasion."
Irruption has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings i & uption which should not be misspelled with single 'R'
Wrong Spelling:  i-r-uption  Correct Spelling:  i-rr-uption 
Check more misspelled words of Irruption to spell it correct.