mister

/ˈmɪstər/
verb
  1. To address or refer to someone as 'mister'.
    • The student misters his teacher out of respect.
    • He felt awkward when the clerk mister him repeatedly.
    • In the old film, servants always mister the gentlemen.
noun
  1. A title used before a man's surname or full name, often written as Mr.
    • Please welcome Mister Johnson to the stage.
    • Mister Davis is my history teacher.
    • I wrote a letter to Mister Smith about the issue.
  2. Used as a form of address to a man whose name is unknown, sometimes considered informal or rude.
    • Hey mister, can you tell me the time?
    • The child tugged on the man's sleeve and said, 'Mister, I'm lost.'
    • Excuse me, mister, you dropped your wallet.
Synonyms