Look up fb in Wiktionary, the free dictionary.

FB, Fb, or fb may refer to:

• F♭ (musical note)
• FB (band), an electronic music collaboration of Benny Benassi and Ferry Corsten
• Facebook, a social networking website, also known as FB.com
  • Meta Platforms, formerly Facebook Inc (Nasdaq: FB), parent company of Facebook
• Friendship book, a booklet swapped amongst pen pals
• Frostbite (game engine), a video game engine
• FB, known as Trucksy in the US, an old green pickup truck from Roary the Racing Car

• Framebuffer, in computer technology
• FreeBASIC, a 32-bit compiler using BASIC syntax for DOS, Windows, and Linux
• FictionBook, an open XML-based e-book format hailing from Russia

• F B swamp vehicle, a Japanese military vehicle used for crossing difficult swampy terrain
• Fast busy, or reorder tone, a type of telephone signal
• Feedback, in signaling systems
• Femtobarn, a small unit of area used in high energy physics
• Fluidized bed, a special technology used in energy, reactor, chemical engineering etc.
• Hyundai FB, a series of buses manufactured by Hyundai Motor Company
• Foreign body, any object originating outside the body

• Fenerbahçe, a Turkish sports club
• Fly ball, a type of batted ball or a pitching stat in baseball
• Football
• Fullback (American football), a position in American football
• Full-back (association football), a position in association football

• Bulgaria Air (Bulgarian: България еър, IATA code FB), the flag carrier airline of Bulgaria
• Firebase or Fire support base, an artillery encampment
• Footbridge (fb on some maps), a bridge designed for pedestrians
• Fremont Bank, a US based retail and commercial bank
• FB "Łucznik" Radom, a Polish defence industry enterprise from Radom that produces firearms

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• BF (disambiguation)

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