The word Siter is misspelled against Sitter, a noun meaning "A bird that sits or incubates."
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Sitter has double "tt" is mispronounced as "t"
Remember double 'TT' in between the strings si & er which should not be misspelled with single 'T'
Wrong Spelling:  si-t-er 
Correct Spelling:  si-tt-er 
Find more wrongly spelled words of Sitter to spell it well.