Muster or Maister: How To spell?

The word Muster is misspelled against Maister, a noun meaning "Master."

Word contains consecutive vowels 'AI' in between alphabets m & ster is misspelled as 'U'
Wrong Spelling:  m-u-ster 
Correct Spelling:  m-ai-ster 
Check more misspelled words of Maister to spell it correct.

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