WordDictionary

initialism:

• Important Bird Area
• Incinerator bottom ash
• Independent Broadcasting Authority
• Indole-3-butyric acid - auxin, a plant "Rooting hormone"
• InfiniBand Architecture
• Institute of Business Administration
• Interceptor Body Armor
• International Bank of Asia
• International Bar Association
• International Bartender Association, which set out IBA Official Cocktail regulation
• International Bartenders Association
• International Basketball Association
• International Bodyboarding Association
• International Boxing Association (amateur)
• International Boxing Association (professional)
• International Bryozoology Association
• International Business Alliance
• Ion beam analysis, an analytical technique
• Iron Butt Association
• Israel Broadcasting Authority