Scholbok or Schoolbook: How To spell?

The word Scholbok is misspelled against Schoolbook, a noun meaning "A book used in schools for learning lessons."

--> Schoolbook has double 'oo' twice appearing mispronounced as 'o'
Remember double 'OO' appears twice in this word which should not be misspelled with single 'O'
Wrong Spelling:  sch-o-lb-o-k 
Correct Spelling:  sch-oo-lb-oo-k 
Find more incorrect spellings of Schoolbook to spell right way.

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