FF

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Arts and entertainment

Games

• Fatal Frame, a survival horror video game series
• Fatal Fury (series), a fighting video game series
• Final Fantasy, a role-playing video game series
• Final Fight, a beat 'em up video game series
• Fortress Forever, a mod for the first-person shooter video game Half-Life 2
• Free Fire, a battle royale video game

Music

• Fortissimo (ff), a dynamic indicator in music for "very loud"
• Fear Factory, an American metal band
• Fleet Foxes, an American indie folk band
• Foo Fighters, an American rock band
• Franz Ferdinand (band), a Scottish rock band
• Freestyle Fellowship, an American hip hop group

Other media

• ff – Südtiroler Wochenmagazin, an Italian weekly journal published in German language
• Fantastic Four, a superhero team appearing in comic books published by Marvel Comics
• Future Foundation, a fictional superhero team that replaced the Fantastic Four after the death of Johnny Storm, also published by Marvel Comics
• Logo of Finos Film, a former Greek film production company
• Found footage (pseudo-documentary), a film genre in which created footage is presented as if it were discovered
• Family Feud, an American syndicated game show
• Family Fortunes, a British game show based on the American version
• Freeform (TV channel), a US cable and satellite TV channel that is targeted to teens and young adults
• FF, the production code for the 1966–67 Doctor Who serial The Highlanders

Businesses and organizations

• Faraday Future, a car company
• Fianna Fáil, political party in the Republic of Ireland and Northern Ireland
• Mukti Bahini (Freedom Fighters), an armed organizations who fought against the Pakistan Army during the Bangladesh Liberation War
• Tower Air (IATA code: FF), a certificated FAR 121 schedule and charter U.S. airline that operated from 1983 until 2000

Language

• ‹ff›, a Latin alphabet digraph, see List of digraphs in Latin alphabets#F
• Word-initial ff, digraph used initially
• Fula language (ISO 639-1 code), a language of West Africa

Science and technology

Computing

• File format, any of numerous ways to encode information on digital media
  • .ff file format, used by game developer Infinity Ward to store data securely
  • .ff file format, used by imaging technologies corporation Agfa-Gevaert to store font outline data
• Firefox, a web browser developed by Mozilla Foundation
• Flip-flop (electronics), a digital electronic circuit memory element
• Form Feed, a control character in the C0 control code set used in ASCII
• Full-frame digital SLR, a camera fitted with an image sensor equivalent in size to traditional 35mm film

Transportation

• Ferrari FF, a sports car
• Jensen FF, the first non all-terrain production car equipped with 4WD and an anti-lock braking system
• Feet forwards motorcycle
• Front-engine, front-wheel-drive layout, a car designed with a front engine and front-wheel drive, colloquially known as "FF" for short
• Front freewheel, a crankset for bicycles

Other uses in science and technology

• Fast forward, forward movement through a recording faster than the speed at which it was recorded
• Femtofarad (fF), a unit of capacitance equal to 1×10⁻¹⁵ farads
• Fill factor (disambiguation), a term applied in various geometrical models and electronic devices
• Filtration fraction, in renal physiology
• Frasnian-Famennian extinction (F-F), also known as the Late Devonian extinction

Other uses

• 255 (number) (hexadecimal: FF₁₆), the natural number following 254 and preceding 256
• ff., and the following pages (in a citation)
• FF, a bra size
• False flag, a diversionary or propaganda tactic
• Follow Friday, a Twitter hashtag
• FontFont, a font library owned by FontShop International
• French Franc, a currency
• Frequent flyer, often abbreviated as FF# on itineraries or travel documents