The word Bosing is misspelled against Bossing, which is present continuous of "Boss"
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Bossing has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings bo & ing which should not be misspelled with single 'S'
Wrong Spelling:  bo-s-ing 
Correct Spelling:  bo-ss-ing 
Find more incorrect spellings of Bossing to spell right way.