Englishfor English speakers
step
Verb
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When you step, you move one foot.
When you walk, you step many times.
If you step on the ant, it will be dead.
step
Noun
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A step is a movement of the foot
Take one step forward to win the game.
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A step is one of several actions or processes taken to achieve a goal.
Heating the oven is one step needed to bake bread.
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A step is a surface used to walk upwards. Most often there are several steps, one above the other.
One must walk up the steps to get to the top of the building.
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.