The word "hike" generally refers to a long walk, especially in nature or in the countryside. It can also mean to raise or increase something, like prices or wages. In a more informal context, it is often used to describe the action of going for a walk or climb in a natural setting, where one enjoys the scenery and exercises at the same time.
The word "hike" originated in the 19th century in the United States, likely derived from the earlier term "hick," which means to move quickly or with a sudden action. The specific meaning related to walking in nature evolved over time.