List of Acronyms and Initialisms: O - OB

OB

• ob – (p) obiit (Latin, "(s) he died")
• OB – (p) Obedience – Obligation – Obligatory – Obsolete – Obstetrics – (i) Ocean Beach (California) – Off Break (cricket) – Old Bryanstonian – Order of Battle – Outlet Box (electrical) – (p) Overbought (stock market) – (i) Oversight Board
• OBE – (i) Officer of the Order of the British Empire
• OBJ – (p) Objective (military parlance)
• OBS – (p) Observation/Observer – Obsolete – Obstacle – (i) Off Balance Sheet – Optical Burst Switching (IEEE) – Organic Brain Syndrome – Organization(al) Breakdown Structure
• OBSS – (i) Off Board Sensor Systems – Ordo Byantinus Sancti Sepulchri (Byzantine Order of the Holy Sepulchre) – Orbiter Boom Sensor System (space shuttle) – Origins Billion Star Survey
• OBX – (p) Outer Banks (North Carolina)