Radiotelegraphy, also known as wireless telegraphy, is the transmission of messages using radio waves. Some common synonyms for the word radiotelegraphy include wireless communication, radio communication, telecommunication, and radiocommunication. Morse code is often associated with radiotelegraphy, as it was originally used to transmit messages over the telegraph lines. Other related terms include radio teleprinter, which is a device that allows messages to be typed and printed over a radio link, and radio teletype, which is a communication system that allows text to be transmitted over radio waves. Overall, radiotelegraphy is an important aspect of communication technology and has greatly shaped modern society.