Improvisatori or Improvvisatori: How To spell?

The word Improvisatori is misspelled against Improvvisatori, which is plural of "Improvvisatore"

Improvvisatori has double "vv" is mispronounced as "v"
Remember double 'VV' in between the strings impro & isatori which should not be misspelled with single 'V'
Wrong Spelling:  impro-v-isatori 
Correct Spelling:  impro-vv-isatori 
Find more incorrect spellings of Improvvisatori to spell right way.

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