OCF

• +ocf = On Camera Flash, -ocf = Off Camera Flash
• Cranial Osteopathy
• E-Book
• High_frequency
• Java (programming language)
• MP3
• MusicXML
• OCF - Ordnance Clothing Factory
• Oasis Christian Fellowship
• Observable canonical form
• Ocala International Airport
• Off Center Fed antenna
• Officers' Christian Fellowship
• Open Cluster Framework
• Open Computing Facility
• Open Connectivity Foundation
• Open Container Format
• Open Document
• Open channel flow
• OpenBSD Cryptographic Framework
• OpenCard Framework
• Operating cash flow
• Ordinal collapsing function
• Oregon Country Fair
• Original Composite Font
• Orthodox Christian Fellowship
• Osteopathy in the Cranial Field
• Our Common Future
• Overseas Christian Fellowship
• Owens Corning
• abbreviation
• acronym
• dipole antenna
• ePUB
• resonance