Definition: The word "addiction" is a noun that refers to a strong and often harmful need to regularly take a substance (like drugs or alcohol) or engage in a behavior (like gambling) despite the negative consequences it may bring. It can also refer to a dependency on something, making it challenging to stop using it.
In more complex contexts, "addiction" can also refer to psychological or emotional dependence, not just physical. For instance, someone might have an addiction to shopping, which means they feel a strong need to buy things, even when they cannot afford them.
In a historical context, "addiction" can refer to a formal legal award or surrender under Roman law, but this meaning is not commonly used today.