Englishfor English speakers
four
Determiner
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(ordinal fourth) The number 4. Four is one more than three and one less than five.
We have four fingers and one thumb on each hand.
four
Noun
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The number 4.
Two and two is four.
loop
Noun
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A loop in a rope or thread is formed when the line is laid on top of itself so that an opening is formed.
To tie the knot, first create a loop.
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A loop is a part of a computer program that repeats.
My program became stuck in an infinite loop.
loop
Verb
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To loop something is to make it into the shape of a loop.
Loop the rope over your hands.
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To move in a loop is to move in the path of a loop.
The plane looped above us.
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.