The meaning of the Acronym EFF is...

EFF is

• Efficiency

More Meanings For EFF:

• Extended Format File
• Extended Font Format
• Electronic Frontier Foundation
• Electronic Frontier Foundation
• Equalized Frequency Flow
• Experimental Forecast Facility
• Electronic Freedom Foundation
• Elite Federation Force
• English First Foundation
• Electronic Font Foundry
• Electronic Font Foundry (Company)
• Efficiency
• Electronic Frontier Foundation
• Equipped For the Future
• Education Freedom Fighter

EFF is also in:

• Educational
• Electronics
• Firms
• General
• NASA
• Ocean Science
• Politics
• Security
• Telecom
• Unfiled