FB
FB, Fb, or fb may refer to: == Arts and media == 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 Fat Bastard, a character in Austin Powers films == Science and technology == === Computing === 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 === Other uses in science and technology === 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.