Kebab-case is a naming convention used in programming and web development where words are separated by hyphens. For example, the phrase "my variable name" would be written as "my-variable-name." This format is often used in URLs and file names because it improves readability and helps avoid spaces, which can cause issues in certain contexts. Kebab-case is similar to other naming conventions like snake_case and camelCase, but it specifically uses hyphens instead of underscores or capital letters. It is particularly popular in languages like JavaScript and frameworks such as CSS, where clear and consistent naming is essential for code maintainability.