radio vs telegraph

radio

noun
  • A device that can transmit radio signals. 

  • The technology that allows for the transmission of sound or other signals by modulation of electromagnetic waves. 

  • A device that can capture (receive) the signal sent over radio waves and render the modulated signal as sound. 

  • The continuous broadcasting of sound via the Internet in the style of traditional radio. 

  • On-board entertainment system in a car, usually including a radio receiver as well as the capability to play audio from recorded media. 

verb
  • To order or assist (to a location), using telecommunications. 

  • To use two-way radio to transmit (a message) (to another radio or other radio operator). 

telegraph

noun
  • The electrical device gradually developed in the early 19th century to transmit messages using Morse code; the entire system used to transmit its messages including overhead lines and transoceanic cables. 

  • A visible or audible cue that indicates to an opponent the action that a character is about to take. 

  • Synonym of telegraphy, any process for transmitting arbitrarily long messages over a long distance using a symbolic code. 

verb
  • To use a telegraph. 

  • To clearly communicate to another nonverbally, whether by gesture, a change in attitude, or any other sign, especially unintentionally. 

How often have the words radio and telegraph occurred in a corpus of books? (source: Google Ngram Viewer )