The word Calus is misspelled against Callus, a noun meaning "Same as Callosity"
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Callus has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings ca & us which should not be misspelled with single 'L'
Wrong Spelling: ca-l-us
Correct Spelling: ca-ll-us
Check more misspelled words of Callus to spell it correct.