Similar to Earth_First!

FFVS J 22

McDonnell FH Phantom

McDonnell F2H Banshee

Siebel Fh 104 Hallore

Fieseler Fi 156 Storch

FIFO (computing and electronics)

File Transfer Protocol

FileMaker

Firth

North American FJ-1 Fury

Flettner Fl 265

Floating point operations per second

Functional magnetic resonance imaging

Forth (programming language)

Fortran

Field-programmable gate array

Microwave transmission

Free Pascal

Vought XF5U

Vought F7U Cutlass

Añorga KKE

Royal Society of Chemistry

Dutch Language Union