Slavic languages usually call both semaphores, other languages have their own word, usually derived from a lamp, or signal device (Die Ampel in German - meaning “hanging lamp”)
Edit: Realized that czech language calls the mechanical signal devices just “signal device” (signalizační zařízení) and “semaphore” (semafor) is used for light signals.
Although semaphore is a french word, French call them traffic lights like in english.
What do they call semaphores? (Manually operated single instruction flag or non electronic switching traffic signs)
Slavic languages usually call both semaphores, other languages have their own word, usually derived from a lamp, or signal device (Die Ampel in German - meaning “hanging lamp”)
Edit: Realized that czech language calls the mechanical signal devices just “signal device” (signalizační zařízení) and “semaphore” (semafor) is used for light signals. Although semaphore is a french word, French call them traffic lights like in english.