-  Mr.; Sir: Spanish title of respect: abbrev. Sr
- a man; gentleman
Origin of señorSpanish from Classical Latin senior: see senior
- Abbr. Sr. a. Used as a courtesy title before the surname, full name, or professional title of a man in a Spanish-speaking area.b. Used as a form of polite address for a man in a Spanish-speaking area.
- A Spanish or Spanish-speaking man.
Origin of senorSpanish from Old Spanish sennor from Vulgar Latin senior lord from Latin senior ; see senior .