The word Apui is misspelled against Appui, a noun meaning "A support or supporter; a stay; a prop."
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Appui has double "pp" is mispronounced as "p"
Remember double 'PP' in between the strings a & ui which should not be misspelled with single 'P'
Wrong Spelling: a-p-ui
Correct Spelling: a-pp-ui
Check more misspelled words of Appui to spell it correct.