Wave superposition is a principle in physics that states when two or more waves meet, they combine to form a new wave. This new wave's characteristics, such as amplitude and frequency, depend on the individual waves' properties. The resulting wave can be larger, smaller, or have a different shape than the original waves, depending on how they interact. This phenomenon is commonly observed in various contexts, such as sound waves, light waves, and water waves. For example, when two sound waves overlap, they can create a louder sound through constructive interference or a softer sound through destructive interference.