Amplitude வீச்சு
How far a wave swings from its middle line; in sound, how loud it is.
See it in Cinemagraph. Pick the Wave animation, then raise Amplitude.
In plain words
Every wave swings up and down around a middle line. Amplitude is how far it swings. In sound, a bigger swing means a louder sound. In a picture or an animation, it means a bigger bend or a wider movement. Amplitude says nothing about how often the wave repeats; that is frequency.