Functional (Practical) refers to the quality of being useful and effective in real-world applications. It emphasizes the ability to perform tasks efficiently and meet specific needs. For example, a tool designed for a particular job is considered functional if it helps users complete that job easily and effectively. In various fields, such as design and engineering, functional aspects are prioritized to ensure that products or systems serve their intended purpose. This approach often leads to solutions that are straightforward, user-friendly, and focused on practicality, rather than purely aesthetic or theoretical considerations.