Lying is when someone says something that is not true, often to deceive others. People might lie for various reasons, such as to avoid getting in trouble, to protect someone's feelings, or to gain an advantage. While some lies may seem harmless, they can lead to trust issues and hurt relationships. In many cultures, honesty is highly valued, and lying can have serious consequences. For example, in a courtroom, lying under oath is called perjury and is considered a crime. Understanding the impact of lying can help us appreciate the importance of truthfulness in our interactions with others.