Definition of sir in English:


Line breaks: sir
Pronunciation: /səː
(also Sir)


  • 1Used as a polite or respectful way of addressing a man, especially one in a position of authority: excuse me, sir
    More example sentences
    • He cleared his throat before saying, ‘Excuse me, sirs, but if you don't calm down, we're going to have to ask you to leave.’
    • ‘Please excuse me, sirs,’ Julian said quietly, then slipped away as discreetly as he could.
    • We heard you say you want to get on with your life, but, with all due respect, sir, getting on with our lives isn't an option.
  • 1.1Used to address a man at the beginning of a formal or business letter: Dear Sir
    More example sentences
    • Dear Sir / Madam, We look for serious buyer for a coal mining exploration company.
    • Dear Sir / Madam, we have logged your IP-address on more than 40 illegal Websites.
    • Dear Sir, my address this afternoon consists of six parts.
  • 1.2Used as a title before the forename of a knight or baronet.
    More example sentences
    • Arthur announced, 'You are indeed brave, sir knight, but the fight is mine!'.
    • Wedding bells are in the air at Huntington Stadium after good sir knight Norris and fair maiden Rosemary Westmoreland recreated one of the happiest moments of their lives.
    • You, sir knight,’ he pointed at Michael with his staff, ‘Have been chosen by the Lord for this age, and this time.’
  • 1.3 another expression for siree.


Middle English: reduced form of sire.

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