wind
Definition
The wind is the movement of air. It can be caused by the sun heating the Earth's surface, which causes the air to rise and cool. The cool air then sinks back down, creating wind.
Wind can also be caused by differences in air pressure. When there is high air pressure in one area and low air pressure in another area, the air will flow from the high pressure area to the low pressure area.
Wind can be gentle or strong. It can be used to power windmills and sailboats. It can also cause damage, such as blowing down trees and power lines.
How can the word be used?
The wind blew the leaves off the trees.
Different forms of the word
Noun:
- the movement of air from an area of high pressure to an area of low pressure.
- a current of air blowing in a particular direction.
- a natural force that can cause damage.
Verb:
- to move air in a particular direction.
- to coil or twist something around something else.
- to blow something around.
Etymology
The word "wind" comes from the Old English word "wind", which means "air in motion".
The first recorded use of the word "wind" in English was in the 7th century.
Question
What needs the wind to work?