Editing Signal (disambiguation)

{{Wiktionary|Signal|signal|signals|signaling|signalling}}
A '''[[signal]]''' is any variation of a medium that conveys information. 

'''Signal''' or '''signaling''' may refer to:
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==Science and technology==
* [[Analog signal]]
* [[Audio signal]]
* [[Digital signal]]
** [[Digital signal (signal processing)]]
* [[Cell signaling]], in biology
* [[Signalling (economics)]], in economics theory
* [[Signal processing]], subfield of electrical engineering
* [[Signalling theory]], in evolutionary biology
* [[Time signal]]

===Computing===
* [[SIGNAL (programming language)]], a synchronous programming language
* [[Signal (IPC)]], a form of inter-process communication used in Unix and related operating systems
** [[C signal handling]], a way for handling signals received by programs during their execution
* A term in [[functional reactive programming]]

===Communications===
* [[Military communications]], often called "signals"
** [[Signal corps]], military branch responsible for military communications
* [[Recognition signal]] in human, technical or biological communications
* [[Signal (software)]], an end-to-end encrypted messaging application
** [[Signal Protocol]], a cryptographic protocol used by the Signal application
* [[Signaling protocol]] to establish or tear down a connection, and to identify the state of the connection
* [[Signaling (telecommunications)]], a part of some communication protocols
* [[Smoke signal]], an ancient form of communication
* [[Telegraphic signal]], in telegraphy

====Communication for transport====
* [[International Code of Signals]], a standard for sending signals by displaying flags
** [[Maritime flag signalling]], generally flaghoist signalling, by which ships communicate with each other
** [[Naval flag signalling]], covers various forms of flag signalling, such as semaphore or flaghoist
* [[Railway signal]]
* [[Traffic light]] (traffic signal)

==Arts and entertainment==
=== Books and magazines ===
* [[Signal (magazine)|''Signal'' (magazine)]], a Wehrmacht propaganda magazine which was published in occupied Europe during World War II
* [[SIGNAL (US magazine)|''SIGNAL'' (US magazine)]], publication of the Armed Forces Communications and Electronics Association
* ''Signal'', a New York Yiddish-language literary monthly published from 1933 to 1936 by the [[Communist Party USA]]
* [[Signal (novel)|''Signal'' (novel)]], a 2009 children's novel about a boy who helps a girl from another planet signal her parents

=== TV and movies ===
* [[Signal (South Korean TV series)|''Signal'' (South Korean TV series)]], a 2016 South Korean police procedural TV series
* [[Signal (Japanese TV series)|''Signal'' (Japanese TV series)]], a 2018 Japanese police procedural TV series based on the 2016 South Korean series of the same name
* Signal, Wyoming, a fictional town from the 2005 film ''[[Brokeback Mountain]]''
* "Signals", a 2005 episode of the animated television series ''[[12 oz. Mouse]]''

===Music===
* [[Signal (band)]], a Bulgarian rock band
* [[Signal – The Southeast Electronic Music Festival]], an annual music festival held in the US

====Albums====
* [[Signal (album)|''Signal'' (album)]], a 2005 album by Casiopea
* [[Signals (Mal Waldron album)|''Signals'' (Mal Waldron album)]], 1971
* [[Signals (Mallory Knox album)|''Signals'' (Mallory Knox album)]], the début album of the Mallory Knox band
* [[Signals (Rush album)|''Signals'' (Rush album)]], 1982
* [[Signals (Wayne Krantz album)|''Signals'' (Wayne Krantz album)]], 1990
* ''Signals'', an album by American band [[Devour the Day]]
* [[Signal (EP)| ''Signal'' (EP)]], a 2017 extended play by South Korean girl group Twice

====Songs====
* [[Signal (KAT-TUN song)|"Signal" (KAT-TUN song)]], a 2006 song by KAT-TUN
* [[Signal (Twice song)|"Signal" (Twice song)]], a 2017 song by Twice
* [[Signals (song)|"Signals" (song)]], a 2021 song by Regard and Kwabs
* "Signal", a song by [[General Degree]]
* "Signal", a single by [[Stan Getz]]
* "Signal", a song from the 2006 Bollywood film ''[[Bhagam Bhag]]''
* "Signal", a song by Sara Groves from the album ''[[Floodplain (Sara Groves album)|Floodplain]]''

==Places==
===United States===
* [[Signal, Arizona]], a ghost town
* [[Signal, Missouri]], a ghost town
* [[Signal, Ohio]], an unincorporated community

==Organizations==
* [[Signal Foundation]], a non-profit organization
* [[Signal Entertainment Group]], a South Korean company

==Other uses==
* [[Signal (bridge)]], a permitted means of conveying information to partner through the play of cards in contract bridge
* [[Citation signal]], in law
* [[Signal (toothpaste)]]
* [[USS Signal|USS ''Signal'']], several US Navy ships

==See also==
* [[Cignal]], a satellite pay TV provider in the Philippines
* [[Cignal TV]], Philippine media and telecommunications company
* [[Cygnal]]
* [[Digital signal (disambiguation)]]
* [[Signaal]], former name of the Dutch defense company Thales Nederland
* [[Signal 1]], a radio station
* [[Signal 2]], a radio station
* [[The Signal (disambiguation)]]
* [[Signal Mountain (disambiguation)]] 
* [[Virtue signalling]], the conspicuous expression of moral values

{{Disambiguation|geo}}