Englishfor English speakers
rectangular
Adjective
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If something is rectangular, it has the shape of a rectangle.
stress
Noun
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Stress is emotional pressure that makes you worry because things are not going well.
Death is a time of great stress for family and friends.
Plants under stress from lack of water or disease are the most likely to attract problem insects.
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Stress is physical pressure that gradually can cause things to break
Sitting puts an unnatural stress on the back and shortens the neck.
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Stress is extra attention or importance that you put on something.
Psychology has put a lot of stress on the childhood roots of adult problems.
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Stress is extra loudness that you use in a word or in music.
Put more stress on the first syllable of the word.
stress
Verb
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If you stress something, you say that it is very important.
I have repeatedly stressed the importance of hard work, but luck is also helpful.
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If you stress a word, part of a word, or a note in music, you make it louder than other words or notes.
diagram
Noun
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A diagram is a drawing, or sketch, to show how something, such as a machine, works.
You can see from this diagram that the electric switch is very simple, in fact.
Here is a diagram of some machines in a power plant.