A signal is something you can see or hear that tells you to do something or warns you. It helps people understand when to start or stop actions.
The green light is a signal to go.
He gave a signal with his hand.
In technology, a signal is an electrical or wireless message sent from one device to another. It helps machines share information.
The phone is sending a signal now.
The radio signal is very strong.
A signal can be a sign or a clue that something is happening or changing. People use it to understand a situation or health condition.
Fever is a signal of illness.
High sales are a signal of success.
To signal means to give a message or a warning using a sound, movement, or light. It helps people understand or act.
She signaled the bus to stop.
He signaled with his hand to start.
In transport, a signal is a light or sign that controls movement. It tells vehicles or trains when to stop or go to keep things safe.
The signal turned red at the crossing.
Wait for the signal before you cross.
In computing, a signal is a special message sent to a program to tell it to do something, like stopping or pausing work.
The program caught the signal to stop.
Signals help computers manage tasks.
A signal can be a special gesture or sign used quietly to pass information without speaking. This is common in teams or soldiers.
The captain gave a signal to start the game.
They use signals to send secret messages.
