Word: telegram
Definition: A once-popular system of telecommunications, in which the sender would contact [the telegram] service and speak their message over the phone. The person taking the message would then send it, via a teletype machine, to a telegram office near the receiver's address. The message would then be hand-delivered to the addressee. From [1851] until it discontinued the service in 2006, [Western Union] was the best-known telegram service in the world.