Englishfor English speakers
barrier
Noun
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A barrier is something that stops passage; it does not allow anything to get through it.
The barrier across the road stopped traffic from getting past it.
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A barrier is an obstacle; it is something to prevents progress.
The bug in the code was a barrier to us completing the project on time.
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A barrier is a boundary or limit.
The wall surrounding the jail was a barrier to all those who want to get out.
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.
rectifier
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noun
electrical device that transforms alternating into direct current
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noun
a person who corrects or sets right
a rectifier of prejudices