Vibration/vaɪˈbreɪʃn/ Definition 1 of 5Pro Tip 1/3Physical Sensation Describes how you feel a repeated motion, often through touch. The vibration of the washing machine was very noticeable. Pro Tip 2/3Mechanical Context Often used for machinery or electronic devices when they shake or hum. The vibration of my phone alerts me to new messages. Pro Tip 3/3Intensity Variation The word can indicate different levels of shaking or movement. A light vibration went through the train as it started moving.