Decenial or Decennial: How To spell?

The word Decenial is misspelled against Decennial, a noun meaning "A tenth year or tenth anniversary."

Decennial has double "nn" is mispronounced as "n"
Remember double 'NN' in between the strings dece & ial which should not be misspelled with single 'N'
Wrong Spelling:  dece-n-ial 
Correct Spelling:  dece-nn-ial 
Find more wrongly spelled words of Decennial to spell it well.

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