signaling

noun
UK /ˈsɪɡnəlɪŋ/
US /ˈsɪɡnəlɪŋ/

Sending a sign or message to someone.

The train driver used signaling to warn the workers on the track.


OTHER MEANINGS

2. The system of lights, signs, or equipment used to control traffic or trains.

The railway's signaling was upgraded to make journeys safer.

3. In biology, the process by which cells send and receive chemical messages.

Cell signaling helps the body respond to hormones.

4. The act of making something known or clear through actions or words.

His signaling of support for the plan was clear to everyone.