The meaning of the Acronym FN is...

FN is

• Fuck Nut

More Meanings For FN:

• File Name
• Forum Notice
• Frequency and Number
• False Negative
• Fuck Nut
• Figure Name
• Filter Nucleic
• Formula Nippon
• Fake Number
• Frank Nora
• First Number
• A Fibonacci Number
• Face Number
• Freaking News
• Fabrique Nationale

FN is also in:

• Adults
• Chat
• Electronics
• General
• Mathematics
• Unfiled