It can refer to several things, depending on the context:
* Neutral (adjective): Not taking sides or having a particular opinion. Example: "He remained neutral in the debate."
* Neutral (noun): A color that is not a primary color, like gray or beige. Example: "The room was painted in neutral colors."
* Neutral (noun): A country that is not involved in a war or conflict. Example: "Switzerland is a neutral country."