A more thorough explanation:

Definition: A forest is a piece of land that was reserved for hunting deer and other game by the king or a grantee. It may or may not be covered in trees.

Example: In medieval times, the king would often reserve large tracts of land as forests for his own hunting purposes. These forests were usually heavily guarded and only accessible to the king and his guests.

Explanation: This example illustrates how a forest was historically used as a hunting ground for the king and his guests. It also shows that a forest may not necessarily be covered in trees, as it was the designation of the land for hunting that made it a forest.

Example: Today, many national parks and nature reserves are referred to as forests, even if they are not specifically designated for hunting. For example, the Amazon Rainforest is a vast area of land that is home to a diverse range of plant and animal species.

Explanation: This example shows how the term "forest" has evolved to encompass areas of land that are not necessarily reserved for hunting, but are instead protected for their ecological or conservation value. The Amazon Rainforest is an example of a forest that is not designated for hunting, but is still referred to as a forest due to its dense vegetation and biodiversity.