Worldwide
F1
Formula 1
Sports & Games
Function 1
Computing
Filial 1
Medical
United Kingdom
Foundation year 1
Formant 1
Academic & Science
F2FS
Flash-Friendly File System
F6S
from shortening the six letters between F and S to F6S
Business
India
FA
Falna
Transport & Travel
FAANG
Facebook, Amazon, Apple, Netflix and Google
FAB
Fatehabad
