Sir is a formal honorific address in English for men, derived from Sire in the High Middle Ages. Both are derived from the old French " Sieur " (Lord), brought to England by the French-speaking Normans, …

The meaning of SIR is a man entitled to be addressed as sir —used as a title before the given name of a knight or baronet and formerly sometimes before the given name of a priest.

SIR definition: a respectful or formal term of address used to a man. See examples of sir used in a sentence.

Sir is used at the beginning of a formal letter to a man you do not know: Dear Sir

People sometimes say sir as a very formal and polite way of addressing a man whose name they do not know or a man of superior rank. For example, a shop assistant might address a male customer as sir.

1. a polite form of address (spoken or written) to a man. Excuse me, sir!; He started his letter `Dear Sirs, ...'.

🎩 **Honorific “Sir”: The Ultimate Guide to Using This Respectful Title Correctly TL;DR: The title “Sir” is a formal honorific used to address or refer to a man in a respectful way, often in professional, military, …

Apr 24, 2026 · sir (plural sirs) A man of a higher rank or position. A respectful term of address to a man of higher rank or position, particularly: quotations

“At ease, lieutenant.” “Yes sir, captain.” Sir, I don't think I was speeding. Sir, can you help me with this math problem? Dinner is ready, sir.

Use the word sir as a formal title for a man. People often use sir to respectfully or politely address someone they don't know well. When you're saying hello to a man who's been knighted by the …