Efficiency refers to the ability to accomplish a task or produce a result with the least amount of wasted resources, time, effort, or energy. It is a measure of how well inputs are converted into outputs, maximizing productivity while minimizing unnecessary expenditure. Efficiency can be applied to various contexts, such as business operations, energy use, manufacturing processes, and resource management. High efficiency indicates a system or process operates smoothly and effectively, while low efficiency suggests there are significant losses or inefficiencies present. In practical terms, improving efficiency often involves optimizing workflows, reducing redundancies, and employing better technologies or methods to achieve desired outcomes more rapidly and with fewer resources.