Opereta or Operetta: How To spell?

The word Opereta is misspelled against Operetta, meaning "A humorous play in dialogue and music, of more than one act."

Operetta has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings opere & a which should not be misspelled with single 'T'
Wrong Spelling:  opere-t-a 
Correct Spelling:  opere-tt-a 
Explore spell check of Operetta to spell without errors.

You might be interested to know

Permiter or Permitter?

Poted or Potted?

Ratan or Rattan?