Which Constitutional Amendment ensures that people have rights not specifically listed in the Constitution?

The Ninth Amendment to the United States Constitution is significant because it explicitly states that the enumeration of certain rights in the Constitution does not mean that people do not have other rights that are not listed. This amendment was introduced to address concerns that by listing some rights, other unlisted rights could be overlooked or deemed nonexistent. It acts as a safeguard for individual liberties that are not explicitly mentioned in the Constitution, reinforcing the idea that the rights of the people extend beyond what is specifically outlined in the document. This principle is vital for protecting civil liberties and ensuring a broader interpretation of individual rights.