The word Ludable is misspelled against Laudable, meaning "Praiseworthy."
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Word contains consecutive vowels 'AU' in between alphabets l & dable is misspelled as 'U' as letter 'A' is phonetically ignored
Wrong Spelling:  l-u-dable 
Correct Spelling:  l-au-dable 
Check more misspelled words of Laudable to spell it correct.