Concurency or Concurrency: How To spell?
The word Concurency is misspelled against Concurrency, a noun meaning "Concurrence."
Concurrency has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings concu & ency which should not be misspelled with single 'R'
Wrong Spelling:  concu-r-ency  Correct Spelling:  concu-rr-ency 
Check more misspelled words of Concurrency to spell it correct.