wingspan

Imagine an eagle soaring through the sky. The wingspan is not how long its wings are when folded, but the full distance from one tip to the other when they are stretched out. It is an important measurement for birds and airplanes because it helps describe their size and how they move through the air. A larger wingspan often helps with smooth, efficient flight.

The word can also be used for a person, meaning the distance from fingertip to fingertip when the arms are stretched out to the sides. In that sense, it still keeps the same basic idea: the full width from one end to the other.

Wingspan most literally refers to the distance between the tips of the wings of a bird, bat, insect, or airplane when they are fully extended. It is a useful measurement in both nature and aviation because it helps describe overall size and can relate to how something flies. For example, a large bird such as an albatross has a very broad wingspan, while a small bird such as a sparrow has a much shorter one.

The word is also sometimes used for people to mean the distance from one fingertip to the other when the arms are held straight out. In everyday use, this sense is close to arm span. It is still about measuring width from one side to the other, just with arms instead of wings.

You will most often see wingspan used in stories, science writing, sports commentary, and descriptions of animals or aircraft. It helps the reader picture something wide and fully opened. So whether you are reading about a hawk circling above a field or an airplane waiting on a runway, wingspan gives a clear sense of its full width from tip to tip.