* "Free" as an adjective: This is the most common usage. It describes something that is not restricted or obligated. Examples:
* "The bird is free to fly."
* "She got a free sample of the product."
* "Free" as a noun: This is less common, but possible. In this case, it refers to a state of being unrestricted or having no obligations. Examples:
* "He fought for the freedom of his people." ("Freedom" is the noun form of "free")
* "The prisoners were given their freedom."
So, while "free" itself isn't typically a noun, it can be used to describe a noun like "freedom" or "release".