Other
- Traffic semaphore, another name for automotive traffic lights based on their early resemblance to railway semaphores
- Turning semaphore or trafficators, retractable arms to indicate turns on automobiles from the 1920s to 1950s
- Semaphore (programming), in computer science, a mechanism for supporting mutual exclusion in concurrent programs
- Semaphore, South Australia, a historic seaside suburb of Adelaide
- Semaphore railway line, Adelaide, a closed railway line in South Australia
- Semaphore (album), a 1998 album by Fridge
- Semaphore (song), the 2004 7" single by the New Zealand post-rock band Jakob
- Semaphore, fictional professor in Cubitus comic strips or Wowser cartoons
Read more about this topic: Semaphore