Abbreviations & Acronyms Dictionary

Augustinian Sisters
IATA code for All Airports, Osaka, Japan
IATA code for Mount Pleasant Regional Airport, Mount Pleasant, Texas, United States
Oakland School For the Arts
Object System Adaptor
Objective Switching Architecture
Obstructive Sleep Apnea
Obstructive sleep apnea syndrome
Obstructive sleep apneas
Obstructive sleep apnoea
Obstructive sleep apnoea syndrome
Occlusive sleep apnea syndrome
Offensive Situation Awareness
Office of Safety Appraisals
Office of Safety Assessment
Office of Services to the Aging
Office of Special Activities
Office of Special Applications
Office Of Student Activities
Office of Student Affairs
Office of Systems Analysis
Office of the Science Advisor
Office of the Secretary of the Army
Office of the State Actuary
Office Secret Act
Office Secretary of the Army
Office System Architecture
Office Systems Administrator
Oklahoma Sociological Association
Old Statistical Account
Old Stone Age
Olefin modified styrene acrylonitrile
On-Stream Analysis
Online Sexual Activity
Open Scripting Architecture
Open Service Access
Open Service Architecture
Open Services Access
Open Services Architecture
Open Sky Aviation
Open Society Archives
Open Software Architecture
Open Solutions Architecture
Open Storage Area
Open System Architect
Open System Architecture
Open Systems Adapter
Open Systems Adaptor
Open Systems Approach
Open Systems Architecture
Operating System Administrator
Operating System Augmentation
Operational safety analysis
Operational safety assessment
Operational Support Aircraft
Operational Support Airlift
Operational Support Area
Operational Support Authority
Operations Summary Addendum
Operator System Access
Opponent Slugging Average
Optical Society of America
Optical Spectrum Analysis
Optical Spectrum Analyzer
ORBITAL SUN ANGLE
Order of Saint Augustine
Order of St. Anne
Order of St. Augustine
Ordered subset analysis
Ordered subsets analysis
Ordered-Subset Analysis
Ordinis Sancti Augustini
Organic Soil Association
Organization of Staff Analysts
Osage
Osteosarcoma
Other Sponsored Activities
Otto Schulze Autometer
Out of Service Area
Outer Soundings Array
Outfitting Supply Activity
Outfitting Support Activity
Output Sharing Array
Output Spooling Area
Ovarian sectional area
Overseas Supply Agency
Ovine serum albumin
Oxygen Status Algorithm
SCS Open Service Access-Service Capability Server