What is sand box?

There are a few different things that "sandbox" can refer to, depending on the context in which it is used. Here are a few possibilities:

A sandbox is a type of playground equipment that is typically made of wood or plastic and filled with sand. Children can play in the sand, digging and building castles or other structures.

In the context of computing, a sandbox is a testing environment that is isolated from the rest of the system. It is often used to test new software or to run untrusted code without the risk of it damaging the rest of the system.

In the context of search engines, a sandbox is a theoretical concept that refers to a temporary penalty that a search engine might place on a new website, limiting its ability to rank well in search results. This is generally not something that can be observed directly, and the existence of a "sandbox" effect is the subject of much debate in the SEO community.

In the context of video games, a sandbox game is a type of game that gives players a large amount of freedom to explore and interact with the game world, rather than following a predetermined story or set of objectives.