signalling
nounUK /ˈsɪɡnəlɪŋ/
US /ˈsɪɡnəlɪŋ/
Sending messages to someone using signs, lights, or sounds.
The train driver used signalling to tell the other trains to stop.
RELATED WORDS
OTHER MEANINGS
2. The system of lights and signs used to control traffic or trains.
The railway's signalling broke down, so all trains had to wait.
3. The act of showing what you plan to do, especially in driving or sports.
He was signalling left before turning the corner.
4. In biology, the way cells send chemical messages to each other.
Scientists studied the signalling between nerve cells.
5. The process of giving information secretly or indirectly.
Her smile was a signalling of agreement to the plan.