Ruderhole or Rudderhole: How To spell?

The word Ruderhole is misspelled against Rudderhole, a noun meaning "The hole in the deck through which the rudderpost passes."

Rudderhole has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Ru & erhole which should not be misspelled with single 'D'
Wrong Spelling:  Ru-d-erhole 
Correct Spelling:  Ru-dd-erhole 
Check more misspelled words of Rudderhole to spell it correct.

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