Dorcase or Doorcase: How To spell?

The word Dorcase is misspelled against Doorcase, a noun meaning "The surrounding frame into which a door shuts."

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

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