FRR

from Wikipedia, the free encyclopedia

FRR is an abbreviation for:

False rejection rate , a term from biometrics
Airport Front Royal -Warren County to the IATA airport code
FLA missile regiment of the NVA Air Force

FR-R stands for:

Pays de la Loire , former ISO-3166-2 code of a French region

frr is:

the language code for the North Frisian language according to ISO 639-3