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.
of
Preposition
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Made using.
It is a house of cards.
ice
Noun
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A gas or liquid, normally water, which has been frozen (made solid)
When water is cooled below 0°C, it freezes into ice.
Ice is the solid state of water.
ice
Verb
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If you ice something, you cool it by putting ice or something else very cold on it.
I iced my knee after I hurt it in soccer.
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If you ice a cake, you cover with icing.
I iced this cake.