OB (redirected from observatory)

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