FN

FN (plural FNs)

1. Initialism of footnote.

Initialism of Fabrique Nationale.

FN (plural FNs)

1. Diminutive of FN-FAL (the NATO standard rifle)
2. Diminutive of FN Five-seven (the pistol derivative of the FN-FAL)
   • 2020, Moneybagg Yo, Match My Fly:

     I know your purse say D and G, holdin' my FN

• FN-FAL
• FAL

FN

1. Abbreviation of Fabrique Nationale de Herstal.

• Fabrique Nationale de Herstal on Wikipedia.Wikipedia

Initialism of fibronectin.

FN (plural FNs)

1. fibronectin

Initialism of false negative.

FN (plural FNs)

1. Initialism of false negative.
   • 2015 July 24, Krzysztof J. Cios, Dat T. Nguyen, “Data mining and data visualization”, in Susan J Henly, editor, Routledge International Handbook of Advanced Quantitative Methods in Nursing Research, Routledge, →ISBN, page 316:

     A FN diagnosis, on the other hand, can give a patient the illusion of good health (and the patient will not get the necessary treatment).

   • 2021 March 26, Serg Masís, Interpretable Machine Learning with Python: Learn to build interpretable high-performance models with hands-on real-world examples, Packt Publishing Ltd, →ISBN, →OCLC, page 291:

     From the optics of fairness, we care more about FPs than FNs because it's more unfair to put an innocent person in prison than it is to leave a guilty person in the streets.

• N. F., NF

FN

1. Abbreviation of De Forenede Nationer (“United Nations”).

FN m

1. Front National; a political party from either France or Belgium

FN f

1. Fabrique Nationale; a Belgian firearms manufacturer

FN

1. Abbreviation of De forente nasjoner (“United Nations”).

FN c (genitive FN:s)

1. Initialism of Förenta nationerna (“United Nations”).