What does telegraph mean?
A system of communication in which messages are transmitted over wires by means of a code in which letters or numbers are represented by a series of dots and dashes, or a device used for this purpose. A message or news item transmitted by this means.
Example
"The telegraph was a major innovation in the 19th century, allowing people to communicate over long distances almost instantly."
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.