Debugging is the process of identifying and fixing errors or bugs in computer programs. When a program doesn't work as expected, developers use debugging techniques to find out what went wrong. This can involve checking the code line by line, using special tools, or adding print statements to see how the program is behaving. Once the errors are found, developers can make the necessary changes to correct them. Debugging is an essential part of software development, ensuring that programs run smoothly and efficiently. By fixing bugs, developers improve the overall quality and reliability of their software, making it better for users.