The word Aclivities is misspelled against Acclivities, which is plural of "Acclivity"
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Acclivities has double "cc" is mispronounced as "c"
Remember double 'CC' in between the strings A & livities which should not be misspelled with single 'C'
Wrong Spelling:  A-c-livities 
Correct Spelling:  A-cc-livities 
Find more wrongly spelled words of Acclivities to spell it well.