The word Eficacity is misspelled against Efficacity, a noun meaning "Efficacy."
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Efficacity has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings E & icacity which should not be misspelled with single 'F'
Wrong Spelling: E-f-icacity
Correct Spelling: E-ff-icacity
Find more wrongly spelled words of Efficacity to spell it well.