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sir (EN)
substantivo

substantivo “sir”

sg. sir, pl. sirs
  1. senhor
    Excuse me, sir, could you help me find the nearest train station?
  2. senhor (superior militar)
    Yes, sir! The mission is complete.
  3. professor
    Sir, could you please repeat the last point?
  4. um título britânico antes do prenome de um cavaleiro ou baronete
    Sir Ian McKellen has starred in many famous films.