When you speak to someone, you use your mouth to make words that say something.
A symbol is a kind of picture that means something. Symbols are often used on signs, where they can express a lot of information that you can understand quicker and easier than writing.
A telephone is a device that lets you talk to people who are a long, long way away from you - almost anywhere else in the entire world. Telephones are the most common appliance in the world.
More recently, telephones that don't need to be connected to the phone network by wires have been invented. These are called mobile phones.
Something written or spoken is verbose if there are far more words used than is necessary to get the message across.
