Englishfor English speakers
arch
Noun
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A semi-circle shape, like an inverted "U".
Robert drew an arch on the paper.
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Any object having the shape of an arch, from stone bridges and doorways to bows.
They went through the arch into the church.
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A part of the foot, on the bottom, which is shaped like an arch.
She stepped on a nail and hurt the arch of her foot.
arch
Verb
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To make into the shape of an arch.
The cat arched its back.
arch
Prefix
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Arch added to the start of a word signifies it is important or the most important
An archbishop is a senior bishop.
-book villains may be an arch-enemy.
block
Noun
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A block is a hard piece of material, usually with six smooth sides.
When I was young, I liked building things with wooden blocks.
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A city block is the distance from one road to the next.
We have to walk about three blocks to the restaurant.
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In computers, a block is a restriction that prevents access to something.
I could not start a page on Wikipedia because of a block.
block
Verb
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If mathX/math is blocking mathY/math, then mathY/math can't go past mathX/math.
The water in the bath won't go down. There's something blocking the drain.
The road was blocked by police.
Excuse me! You're blocking my view. I can't see.