Amplification, or enhancement, refers to the process of increasing the strength or intensity of a signal, sound, or image. This technique is commonly used in various fields, such as audio engineering, where microphones and speakers amplify sound waves, making them louder and clearer for an audience. In the context of electronics, amplification is achieved using devices like transistors or operational amplifiers, which boost electrical signals. This principle is also applied in communication systems, where signals are amplified to ensure they can travel long distances without losing quality.