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Sir.
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The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
n. 1. Sir Used as an honorific before the given name or the full name of baronets and knights. 2. Used as a form of polite address for a man: Don't forget your hat, sir. 3. Used as a salutation in a letter: Dear Sir or Madam. [Middle English, variant of sire, sire; see SIRE.] |
The American Heritage® Dictionary of the English Language, Fifth Edition copyright ©2022 by HarperCollins Publishers. All rights reserved.
