The meaning of the Acronym HF is...

HF is

• Hay fever
• Heart Failure
• Homotopy Functor
• Hip Flexor

More Meanings For HF:

• Header File
• Have Fun
• Hands Free
• High Frequency
• House File
• High Floor
• High Frequency
• Hafnium
• Heat Flux
• High Fluorocarbon
• Hartree-Fock
• High Flow
• High Frequency
• HydroFluoric acid
• High Frequency

HF is also in:

• Amateur Radio
• Architecture
• Astronomy
• Chat
• Chemistry
• Electronics
• General
• Meteorology