OB (redirected from Ordinary Break (railway defect))

Acronym	Definition
OB	Obstetrics
OB	Oak Bluffs (Massachusetts)
OB	Obedience
OB	Oberbürgermeister (German: mayor of a larger city)
OB	Oberkommandierender (German CINC)
OB	Oberkommando (German: High Command)
OB	Obex (neuroanatomy, part of brain)
OB	Obligation
Ob	Obligatory
OB	Obliterative Bronchiolitis
OB	Oboe
OB	Observatoire de Besançon
OB	Observatory
OB	Obsolete
OB	Occult Blood
OB	Ocean Beach (California)
OB	Octave Band
OB	Odense Boldklub (Danish soccer club)
OB	Off Break (cricket)
OB	Official Building
OB	Ogre Battle (game)
OB	Oh Baby
OB	Ohne Befund (German: Results Negative)
OB	Ohne Binde (German: without a pad; tampon brand)
OB	Oil-Based
OB	Oingo Boingo (band)
OB	Old Babylonian
OB	Old Bastard
OB	Old Bedfordian (Bedford School, UK)
OB	Old Bill (UK police)
OB	Old Boy
OB	Olfactory Bulb
OB	On Board
OB	Open Along Bit Lines
OB	Open Billing
OB	Open Box
OB	Open Box (gaming clan)
OB	Operating Budget
OB	Operation Barnabas
OB	Operation Battleaxe (gaming)
OB	Ophodni Brod (Croatian: patrol boat)
OB	Optical Branch
OB	Order of Battle
OB	Ordinary Break (railway defect)
OB	Organization Behaviour
OB	Organization Block
OB	Original Budget
OB	Orlando Bloom (actor)
OB	Ossewa Brandwag
OB	Ossewa Brandwag (Ox-Wagon Guard)
OB	Out (of the) Blue
OB	Out of Bounds (National Park Service or golf slang)
OB	Out of Business
OB	Outboard
OB	Outbye (mining)
OB	Outcast Bandicoot (fanfiction)
OB	Outdoor Broadcasting
OB	Outlet Box (electrical)
OB	Outside Broadcast
OB	Outward Bound
OB	Over Board
OB	Over Burden (mining)
OB	Overbought (stock market)
OB	Oversight Board
OB	Oxbridge (summer program)