The meaning of the Acronym OBS is...

OBS is

• Other Beastly Secrets
• Output Block Size
• The Open Battle System
• Others Before Self
• Out Back Sport

More Meanings For OBS:

• Oracle Bridging System
• Script (ObjectScript)
• Output-Based Specification
• Orbiting Brown-dwarf Star
• Obsolete
• Ocean Bottom Seismometer
• OSIS Baseline System
• Observatory
• Other Beastly Secrets
• Output Block Size
• The Open Battle System
• Others Before Self
• Out Back Sport
• Organic Brain Syndrome
• OBServer

OBS is also in:

• Astronomy
• Databases
• File Extensions
• Libraries
• Ocean Science
• Physiology
• Software
• Unfiled
• Universities