sir
Pluralsirs
Pluralsirs
- 1A polite word used when speaking to a man, especially a stranger, boss, teacher, or officer.
Like saying 'mister' to a stranger so you sound polite.
Excuse me, sir, you dropped your wallet near the door.
The clerk nodded and said, 'Right this way, sir.'
UsageUse it alone: Yes, sir. With a family name, say Mr: Mr Brown.
Note
- 2A title used before the first name of a knight or baronet.
We were introduced to Sir Walter at the garden party.
She curtsied and greeted Sir Edmund warmly.
UsagePut it before the first name: Sir Walter, not before the family name alone.
Oppositedame
- 3To call someone 'sir' when you speak to them.
Don't sir me. I'm just a coworker, not your boss.
Please don't sir me. I'm only a few years older than you.
UsagePeople mostly say Don't sir me. Write sirred and sirring with two r's.
Note
Showing meanings only.
Practice
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Origin
It comes from a Middle English word 'sir', a short form of 'sire', which came from Old French 'sire' meaning 'master' or 'lord'. That went back to Latin 'senior', meaning 'older'.
Checked 1 Nov 2026 · 3 facts
- English sir comes from Middle English sir, a reduced form of sire. en.wiktionary.org
- Middle English sire came from Old French sire, meaning master or lord. en.wiktionary.org
- Old French sire ultimately derives from Latin senior, meaning older. en.wiktionary.org