Atacker or Attacker: How To spell?

The word Atacker is misspelled against Attacker, a noun meaning "One who attacks."

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

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