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 …

Nov 2, 2026 · 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 …

Oct 12, 2026 · The Society of Interventional Radiology (SIR) is the premier professional organization representing interventional …

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

Sir Darryl Andrew Farris[a] (born November 5, 1986), known mononymously as Sir (stylized as SiR), is an American singer and …

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. …

Watch the Australian indie pop duo perform The Cranberrie’s Linger live at SiriusXM. Hear what’s hot, new, and trending straight …

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

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

sir title of honor of a knight or baronet (until 17c. also a title of priests), c. 1300, a variant of sire (q.v.) that was used originally only in …