The word Suposeer is misspelled against Supposeer, a noun meaning "One who supposes."
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Supposeer has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings su & oseer which should not be misspelled with single 'P'
Wrong Spelling:  su-p-oseer 
Correct Spelling:  su-pp-oseer 
Check more misspelled words of Supposeer to spell it correct.