Definition, Meaning & Synonyms
signal
noun and verb
/ˈsɪɡ.nəl/
Definition
A signal is a gesture, action, or sound that conveys information or instructions.
Examples
- The traffic light changed color to give a signal to drivers.
- She raised her hand as a signal for everyone to be quiet.
- The scientist used a special signal to detect changes in the environment.
Meaning
Signals are used to communicate messages or to indicate the presence of something.
Synonyms
- indication
- sign
- gesture
- alert
