Englishfor English speakers
area
Noun
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An area is a piece of land or space.
This is the business area of town.
We have chosen a large forest area for the new park.
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An area of study is a special subject, such as mathematics, grammar, music, or biology.
Economics is quite interesting, but my area is more related to politics.
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The area of a surface, is the size of the surface.
The length is 10 cm and the width is 5 cm, so the area is 50 mathcm^2/math.
observation
Noun
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Observation is the act of carefully seeing things that happen.
To learn, you must be good at observation.
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An observation is something someone saw, heard etc.
In science, we record our observations so we can think about them later.
equipment
Noun
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Your equipment is the things that you use to do a job or sport.
Soccer is a popular game because you need very little equipment to play--just a ball and an open space.
The soldiers had to carry all their equipment on their backs.
The computer equipment was old and often broke down.