Englishfor English speakers
twin
Noun
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Twins are two people who were born at the same time from the same mother.
I didn't know he was your twin: he looks just like you so I thought he was you!
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When two things are the same, they are twin things.
We have twin beds in our room.
layer
Noun
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A layer is a covering material or substance.
When we got up in the morning, everything was covered by a thin layer of snow.
The cream forms a germ-fighting layer over the skin.
How many layers of clothing do you have to wear in the winter?
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A layer is a level in an organisation.
The company is trying to reduce the number of management layers.
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A layer is a person who lays something, (e.g., carpet, bricks, etc.).
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A layer is a chicken kept to lay eggs.
layer
Verb
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If you layer something, you make layers.
Layer the pasta in an ovenproof dish with the tomatoes, bacon and peas, seasoning each layer.