The word Digable is misspelled against Diggable, an adjective meaning "Capable of being dug."
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Diggable has double "gg" is mispronounced as "g"
Remember double 'GG' in between the strings di & able which should not be misspelled with single 'G'
Wrong Spelling:  di-g-able 
Correct Spelling:  di-gg-able 
Find more wrongly spelled words of Diggable to spell it well.