Dorsill or Doorsill: How To spell?

The word Dorsill is misspelled against Doorsill, a noun meaning "The sill or threshold of a door."

Doorsill has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings d & rsill which should not be misspelled with single 'O'
Wrong Spelling:  d-o-rsill 
Correct Spelling:  d-oo-rsill 
Find more incorrect spellings of Doorsill to spell right way.

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