The word Studed is misspelled against Studded, which is past tense of "Stud"
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Studded has double "dd" is mispronounced as "d"
Remember double 'DD' in between the strings Stu & ed which should not be misspelled with single 'D'
Wrong Spelling:  Stu-d-ed 
Correct Spelling:  Stu-dd-ed 
Check more misspelled words of Studded to spell it correct.