The word Spelable is misspelled against Spellable, an adjective meaning "Capable of being spelt."
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Spellable has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings spe & able which should not be misspelled with single 'L'
Wrong Spelling:  spe-l-able 
Correct Spelling:  spe-ll-able 
Explore spell check of Spellable to spell without errors.