Pronunciation: [va͡ɪbɹˈe͡ɪtɪŋ] (IPA) 
The word "vibrating" (/'vaɪb.reɪ.tɪŋ/) is spelled with a "b" after the "v" because the "v" and "b" sounds are both voiced bilabial consonants. This means that when you make the sounds, your vocal cords vibrate and both sounds are made with the lips together. The "-ing" ending is used to show that the action of vibrating is happening in the present. So, "vibrating" refers to something that is currently shaking or oscillating.
Vibrating, in the context of physics and mechanics, refers to the rapid oscillation or back-and-forth motion of an object or system around a central equilibrium position. This motion is characterized by repeated cycles of displacement from the equilibrium position, creating a pattern of movement that alternates between two opposite directions. The movement is typically accompanied by a regular, rhythmic oscillation of particles or waves, resulting in the production of mechanical vibrations.
Vibrating can also describe the emission or transmission of mechanical vibrations or waves, often as a means of communication or signal transmission. In this sense, vibrations are propagated through a medium, such as air or water, and can be detected or sensed by a receiver or observer.
In everyday usage, vibrating may also refer to the act of producing rapid, oscillatory movements or shaking. This can either be involuntary, as in the case of vibrating muscles or tremors, or intentional, such as using a vibrating device or machine for therapeutic or relaxation purposes.
Overall, vibrating encompasses the concept of rapid oscillation or shaking, whether it be describing the movement of an object or system, the transmission of signals, or the act of producing rhythmic shaking motions.
Shaking; moving to and fro.
Etymological and pronouncing dictionary of the English language. By Stormonth, James, Phelp, P. H. Published 1874.
* The statistics data for these misspellings percentages are collected from over 15,411,110 spell check sessions on www.spellchecker.net from Jan 2010 - Jun 2012.
The word "vibrating" is derived from the verb "vibrate", which came into English in the early 17th century from Latin "vibratus", the past participle of "vibrare". The Latin verb "vibrare" means "to move rapidly to and fro" or "to tremble". It is believed to be onomatopoeic in origin, imitating the sound or motion of a rapid back-and-forth movement. From "vibrare", the noun "vibration" was formed, and "vibrating" is the present participle form of the verb, indicating an ongoing action.
