Plaen or Plein: How To spell?

The word Plaen is misspelled against Plein, an adjective meaning "Full; complete."

Word contains consecutive vowels 'EI' in between alphabets pl & n is misspelled as 'AE'
Wrong Spelling:  pl-ae-n 
Correct Spelling:  pl-ei-n 
Explore spell check of Plein to spell without errors.