Origin: Greek suffix -graph
Telegraph has 4 different meanings across 2 categories:
apparatus used to communicate at a distance over a wire (usually in Morse code)
"The old wooden telegraph clicked rhythmically as it sent messages across the valley."
An apparatus, or a process, for communicating rapidly between distant points, especially by means of established visible or audible signals representing words or ideas, or by means of words and signs, transmitted by electrical means.
"The telegraph allowed news to travel across the country in minutes instead of weeks through an electric wire that clicked with Morse code."
In plain English: A telegraph is an old system that sends messages over long distances using electrical signals instead of sound or light.
"The old telegraph station in town has been abandoned for years."
Usage: The noun form refers to the historical communication system using electrical wires and Morse code rather than modern digital networks. Use this word when describing obsolete technology or specific literary references, as it is rarely used for current instant messaging methods.
To send a message by telegraph.
"She decided to telegraph her family immediately so they would know she had arrived safely."
In plain English: To telegraph means to send a message quickly over long distances using an electrical signal system that is now mostly obsolete but historically important for communication before phones and internet existed.
"The news spread like wildfire, effectively telegraphed by his excited phone call to everyone he knew."
The word "telegraph" comes from French and combines the Greek roots tele- meaning "far away" with graph meaning "writing." It was coined by André François Miot de Mélito as a new name for Claude Chappe's semaphore network, replacing the original term tachygraphe.