Signal, signals, signaling, or signalling may refer to:
[edit] Transportation (unidirectional)
[edit] Communications (bi-directional)
- Beacon
- Distress signal
- International maritime signal flags, using the International Code of Signals
- 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
- Recognition signal in human, technical or biological communications
- Unix signal, a form of interprocess communication
- Signal (electronics), any time-varying or spatial-varying quantity
- Signals (military), military communications
- Signalling (telecommunications), a part of some communication protocols
- Smoke signal
- Telegraphic signal, in telegraphy
- Signal, Wyoming
- Signal (band), a Bulgarian rock band
- Signals (Rush album), 1982
- Signals (Mal Waldron album), 1971
- Signal (album), a 2005 album by Casiopea
- "Signal" (song), a 2006 song by KAT-TUN
- Signal (1933), a New York Yiddish-language literary monthly published from 1933 to 1936 by the Communist Party USA
- Signal (magazine), a Nazi propaganda magazine which was published in occupied Europe during World War II
- Signal (toothpaste)
- Signal 1 and Signal 2 radio stations
- Signaal (now Thales Nederland), a Dutch defense company
- SIGNAL (programming language), a synchronous programming language
- Signal Systems, a telecommunications company of the McLean Group of Companies
- Signal – The Southeast Electronic Music Festival, an annual music festival held in the United States
- Signal (novel), a 2009 children's novel about a boy who helps a girl from another planet signal her parents
- USS Signal, the name of more than one U.S. Navy ship
- signal.h, a C standard library header declaring the
signal function
[edit] See also
