Sir (disambiguation)
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Look up SIR, Sir, or sir in Wiktionary, the free dictionary. |
Sir is a respectful title for a man.
SIR or Sir may also refer to:
- Sir (film), a 1993 Bollywood film
- Sir (A Series of Unfortunate Events), a Guardian character in A Series of Unfortunate Events
Places
Iran
- Sir, Iran, a city in Fars Province, Iran
- Sir, Razavi Khorasan, a village in Razavi Khorasan Province, Iran
- Sir, West Azerbaijan, a village in West Azerbaijan Province, Iran
- Seyar (disambiguation), various places in Iran
West Bank
- Sir, Jenin, Palestinian village in Jenin district
- Sir, Tulkarm, Palestinian village in Tulkarm district
Organizations
- Sigma Iota Rho, a collegiate honor society for international studies
- Society of Interventional Radiology, an American organization of health professionals
- Sons In Retirement (SIR), a fraternal organization of retired men
Mathematics and statistics
- Sampling Importance Resampling, in mathematics, a particle filtering algorithm
- Signal-to-interference ratio, in telecommunication, the ratio of useful signal versus co-channel interference received
- Short interest ratio, a metric signaling prevailing investors' sentiment
Other uses
- SIR model, a compartmental model of the progress of an epidemic
- Saskatchewan International Raceway, a Saskatoon drag strip
- Security Industry Registry, a corporate service provided by the New South Wales Police Force
- Self Insured Retention (SIR)
- Singapore Infantry Regiment, the main formation of the Singapore Army
- Sion Airport (IATA code SIR), the airport in Sion, Switzerland
- Staten Island Railway, rapid transit line in the borough of Staten Island, New York, United States
- Statutory Invention Registration, publication of an invention by the United States Patent and Trademark Office
- Surrey Iron Railway, a horse-drawn plateway that linked the former Surrey towns of Wandsworth and Croydon
- Sirene (Sir in Serbian), a type of cheese
- Serial Infrared, a category of Infrared Data Association
- Secondary Image Registration, a type of passive autofocus
- Supplemental Inflatable Restraint or airbag, a vehicle safety device
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