The meaning of the Acronym IDF is...

IDF is

• Immune Deficiency Foundation
• International Diabetes Federation

More Meanings For IDF:

• Intermediate Data Format
• MIDI instrument definition
• Intermediate Distribution Frame
• Inverse Document Frequency
• Intel Developer Forum
• Independent Distribution Frame
• I Do Fly
• Integrated Dual Feed
• Illinois Disciples Foundation
• Inter-Dimensional Federation
• Internet Death Forces
• Immediate Distribution Facility
• International Dairy Federation
• International Development Foundation
• Intermediate Distribution Facility

IDF is also in:

• Chat
• Databases
• Electronics
• File Extensions
• Networking
• Science Fiction
• Software
• Telecom
• Unfiled
• Universities