Pager (noun)

1. A device that beeps or vibrates to alert the user of an incoming call or message.
2. A device that was commonly used in the past to receive phone calls or messages before the widespread use of mobile phones.

Origin:

Derived from the word "page" which means "a message".

Examples:

1. The doctor was carrying a pager in case of an emergency.
2. The pager would beep to alert the user of an incoming message.
3. The pager was the primary means of communication for doctors and nurses on call.
4. The pager was replaced by the cell phone as the primary means of communication.
5. The pager was a common device in the 90s and early 2000s.