Here are some common uses of "dub":
* To give a name or title to someone or something: "He was dubbed 'The King of Pop'."
* To replace the original soundtrack of a film or TV show with a different language: "The movie was dubbed into Spanish."
* To imitate or copy someone else's style or behavior: "He tried to dub the famous rapper's voice."
It's important to note that "dub" is not a formal prefix like "pre-" or "un-". Therefore, you cannot always predict the meaning of a word with "dub" based on its presence.
If you encounter a word with "dub" that you don't understand, it's best to look it up in a dictionary or contextually analyze the sentence to determine its meaning.