The word Opugnation is misspelled against Oppugnation, a noun meaning "Opposition."
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Oppugnation has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings o & ugnation which should not be misspelled with single 'P'
Wrong Spelling:  o-p-ugnation 
Correct Spelling:  o-pp-ugnation 
Check more misspelled words of Oppugnation to spell it correct.