Share this entry

Share this page


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

Definition of sir in English:


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.
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.

Definition of sir in:

Share this entry

Share this page


What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day jaunt
Pronunciation: dʒɔːnt
a short excursion or journey made for pleasure