There are 2 main definitions of FL in English:

FL1

Line breaks: FL

abbreviation

1.1Liechtenstein (international vehicle registration).
[from German Fürstentum Liechtenstein 'Principality of Liechtenstein']

Definition of FL in:

There are 2 main definitions of FL in English:

fL2

Syllabification: fL

Entry from US English dictionary

abbreviation

Foot-Lambert.

Definition of FL in: