Englishfor English speakers
density
Noun
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Density is how much stuff fits in a particular area.
The population density of Singapore is one of the highest in the world.
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The density of a material is how closely packed its atoms are.
The density of water is higher than the density of steam.
isothermic
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adjective
of or relating to an isotherm
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.