The word Sixtenmos is misspelled against Sixteenmos, which is plural of "Sixteenmo"
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Sixteenmos has double "ee" is mispronounced as "e"
Remember double 'EE' in between the strings Sixt & nmos which should not be misspelled with single 'E'
Wrong Spelling: Sixt-e-nmos
Correct Spelling: Sixt-ee-nmos
Find more incorrect spellings of Sixteenmos to spell right way.