Plain or Plein: How To spell?

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

Word contains consecutive vowels 'EI' in between alphabets pl & n is misspelled as 'AI'
Wrong Spelling:  pl-ai-n 
Correct Spelling:  pl-ei-n 
Find more wrongly spelled words of Plein to spell it well.