Definition

1. Noun:
   • A formal title of respect for a man: "Sir" is used as a polite or formal way to address a man, especially one whose name you do not know or in a position of authority.
   • A title used before the name of a knight or baronet: "Sir" is a title given to a man who has been given a knighthood by a king or queen, placed before his first name or full name.

Usage Examples

• As a term of address:
  • Excuse me, sir, do you have the time?
  • Yes, sir, I will complete the report immediately.
• As a title for a knight:
  • Sir Paul McCartney is a famous musician.
  • The letter was addressed to Sir Ian McKellen.

Advanced Usage

• "Dear Sir or Madam": A formal salutation used at the beginning of a letter when the recipient's name is unknown.
  • The cover letter began with "Dear Sir or Madam".
• "No sir!" / "Yes sir!": Emphatic affirmations or denials, often used to show strong agreement or obedience.
  • "Will you follow these orders?" – "Yes sir!"

Variants and Related Words

• Sire (noun): An archaic or formal term for a father or male ancestor; also a term of address for a king or lord.
  • The stallion was the sire of many champion racehorses.
• Sirrah (noun, archaic): A term of address used to inferiors, often expressing contempt or anger.
  • "What do you want, sirrah?" the nobleman demanded.

Synonyms

• Mister (Mr.): A common title for a man.
• Gentleman: A polite term for a man.

Related Phrases

• If you please, sir: A very polite way to make a request.
  • Another cup of tea, if you please, sir.
• Sir, yes sir: A formulaic response in military contexts to acknowledge an order.
  • The recruit shouted, "Sir, yes sir!"

Idioms

• My good sir: A somewhat old-fashioned or emphatic form of address, sometimes used humorously or sarcastically.
  • Now see here, my good sir, that's quite enough!

Noun

1. a title used before the name of knight or baronet
2. term of address for a man