The meaning of Telegraph

noun

A system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection.

Usage examples:

News came from the outside world by telegraph

noun

A board displaying scores or other information at a sports match or race meeting.

Usage examples:

When the telegraph board is placed at the first teeing-ground, a person will be in charge of it, to…

verb

Send (someone) a message by telegraph.

Usage examples:

I must go and telegraph mama

noun

A method of sending and receiving messages by electric signals that was used in the past, or the equipment used to do this

Usage examples:

Reporters telegraphed details of the trial to their editors.

noun

In the past, the method of sending or receiving messages by electrical or radio signals

Usage examples:

They had telegraphed to say that they had arrived.