The turn signals on my car are not working.

She is often accused of being a virtue signaller.

The radar system detected multiple false signals.

I kept getting busy signals when I tried to call my friend.

The police officer was trained to recognize gang signals.

She's giving me mixed signals about her feelings.

The signal indications were clear and easy to understand.

The signal aspects indicate the status of the railway track.

Signalling events play a crucial role in cellular communication.

The radio signals from outer space are being studied by scientists.