Wave
Wave explained in an easy to understand way:
Imagine trying to pass a message across a crowded room without moving from your spot. Just as you would need to rely on a series of people repeating your message until it reaches the intended recipient, a wave transfers energy through a medium by passing it along from one particle to the next. In this analogy, each person represents a particle in the medium, the message is the energy, and the act of passing the message along is akin to the disturbance that travels through the medium, illustrating how waves transfer energy across distances.
Practice Version
Wave: A repeating disturbance that transfers energy through matter or space. Wave. In simple terms, a wave is a way energy moves from one place to another, like how ocean waves travel across the sea.