* Orange Juice: This is the most common meaning, referring to the beverage made from oranges.
* Original Juice: This term is sometimes used to describe a type of fruit juice that is made without any added sugar or preservatives.
* Other Juice: This is less common, but sometimes used as an abbreviation for any type of fruit juice.
* O.J. Simpson: This is a less common meaning, referring to the former American football player and actor who was acquitted of murder charges in 1995.
To know the exact meaning, you need more context. For example, if you see "OJ" in a grocery store, it probably means "Orange Juice". If you see "OJ" in a news article, it might refer to "O.J. Simpson."