The word Tifish is misspelled against Tiffish, an adjective meaning "Inclined to tiffs; peevish; petulant."
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Tiffish has double "ff" is mispronounced as "f"
Remember double 'FF' in between the strings Ti & ish which should not be misspelled with single 'F'
Wrong Spelling:  Ti-f-ish 
Correct Spelling:  Ti-ff-ish 
Find more wrongly spelled words of Tiffish to spell it well.