Hamerer or Hammerer: How To spell?

The word Hamerer is misspelled against Hammerer, a noun meaning "One who works with a hammer."

Hammerer has double "mm" is mispronounced as "m"
Remember double 'MM' in between the strings ha & erer which should not be misspelled with single 'M'
Wrong Spelling:  ha-m-erer 
Correct Spelling:  ha-mm-erer 
Explore spell check of Hammerer to spell without errors.

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