Englishfor English speakers
established
Adjective
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If an institution, system, etc. is established, it has existed for some time and is probably well known.
The established church leaders often do no wish to see changes that might reduce their power.
The fact that the earth is a ball is well established.
fact
Noun
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A fact is something that is true.
That is not just my idea, it is a fact.
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A fact is a piece of information.
He collects little-known facts.