Other
- Back Stage
- Balance sheet
- Battleship
- Bikram Samwat, calendar established by the Indian emperor Vikramaditya
- Bible study (Christian)
- Big Sister (disambiguation)
- Bikram Sambat, the Nepali calendar
- Biuro Szyfrów, the agency that solved the Enigma machine with plugboard, the main German cipher device during World War II
- Black sludge, an oil deposit in engines, see oil sludge
- Blacksmith, a person who forges items out of metal
- Boy Scouts, see scouting
- Blood sugar in medical shorthand
- Bright Star Catalogue
- British Shipbuilders
- British Standards
- British subject
- British Sugar, private company
- BraveSentry, a clone of SpySheriff
- Broad Street (disambiguation)
- Bullshit, phrase
- Business studies
- Ordo Basilianus Ssmi Salvatoris Melkitarum (Arrouhbaniat Albassiliat Almoukhalissiat/Institute of Consecrated Life), a Roman Catholic monastic Order
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