A hut is a construction of lower quality than a home (durable, well-built residence) but higher quality than a shelter (place of refuge or safety) such as a tent, and it is used as a temporary or seasonal shelter or as a permanent dwelling in primitive communities. Huts may be found in almost all nomadic civilizations. A common form of housing for travelers and fishermen, a hut usually has only one room with a roof made of branches or leaves covered with animal skin or cloth. There might be a fire pit in the center of the floor for heating and cooking. Huts can also be built by people living in villages or towns if they cannot afford a house. These huts are called "cabins". In North America, a cabin is a small house built primarily of wood, often with log walls and a thatched or shingled roof. The word "cabin" comes from the English language, which uses the term "buck" to describe a wooden building tooled with an ax head on one end and a spooned hook on the other. The verb "to cabin" means "to build a cabin for shelter or security." There are different types of cabins depending on what kind of material is available and what style the builder wants to achieve. Log cabins are the most common and take many forms. Some have very few logs and use timber instead; others are large structures with many logs.