Efficiency refers to the ability to accomplish a task with the least amount of wasted resources, such as time, energy, or materials. It is often measured by comparing the output of a process to the input used. For example, a machine that produces more products while using less energy is considered more efficient than one that uses more energy for the same output. In various fields, such as business and engineering, efficiency is crucial for maximizing productivity and reducing costs. By improving efficiency, organizations can enhance their performance and competitiveness. Tools like time management techniques and lean manufacturing practices are commonly employed to achieve greater efficiency.