A signature is a special way that people write their name to let others know that they understand or approve of something that was written. A signature is often used to sign a contract, a cheque, or a petition.
There are many ways to write a signature, and signatures may look different depending on your location. In the United States, many people have a signature which is made from writing their name in their own handwriting, often in cursive. Some signatures may be written in a different style than normal writing, which may make it difficult to read. Some people practice autographs, or fancy signatures that are hard to copy.