- (n.) A title prefixed to the Christian name of a knight or a baronet.
- (n.) An English rendering of the LAtin Dominus, the academical title of a bachelor of arts; -- formerly colloquially, and sometimes contemptuously, applied to the clergy.
- (n.) A respectful title, used in addressing a man, without being prefixed to his name; -- used especially in speaking to elders or superiors; sometimes, also, used in the way of emphatic formality.
- (n.) A man of social authority and dignity; a lord; a master; a gentleman; -- in this sense usually spelled sire.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). sir. Retrieved September 23, 2026, from http://smartdefine.org/sir/definitions/2062381 |
| Chicago | Webster's. 2011. "sir" http://smartdefine.org/sir/definitions/2062381 (accessed September 23, 2026). |
| Harvard | Webster's 2011, sir, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/sir/definitions/2062381>. |
| MLA | Webster's. "sir" 28 May 2011. Web. 23 September 2026. <http://smartdefine.org/sir/definitions/2062381> |