signaloperator
nounUK /ˈsɪɡnəl ˈɒpəreɪtə/
US /ˈsɪɡnəl ˈɑːpəreɪtər/
A person who makes sure signals like lights or messages work and are sent correctly.
The signaloperator changed the red light to green so the trains could move.
RELATED WORDS
OTHER MEANINGS
2. A worker who controls railway signals to keep trains safe.
The signaloperator raised the barrier before the express train arrived.
3. A person who sends and receives messages using lights, flags, or radio.
The signaloperator flashed a lamp to guide the ship into the harbor.
4. A device or program that processes electronic signals.
The signaloperator unit boosted the weak radio signal.