What is dubbing and what is it used for?

When ever a station needs to duplicate a program or commercial for other stations including shows this term is called dubbing. The word dubbing is also used to describe the use of someone else's voice in place of a character or actor in a motion film or production. Every voice you hear in animation is known as dubbing. Dubbing is used in almost every form of entertainment. If you have ever watched Kung Fu movies and noticed different voices from the actual lips moving, that is known as dubbing. Dubbing is used all over the world and in some cases they use dubbing to replace the lines of actors who have heavy accents with a whole different person, while still using the same actor in the film.