Englishfor English speakers
well
Adverb
—
In a good way.
He washed the table very well, so now it is very clean.
well
Noun
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A hole in the ground for getting water or oil.
There was no river nearby, so they dug a well to get water.
known
Adjective
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If something is known, people know about it; it is famous.
It is a known fact that water freezes at 0°C.
She is known for all the volunteer and charity work that she does.
known
Noun
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In algebra, a variable or constant whose value is already determined.
—
Any fact or situation which is well-researched or familiar.
fact
Noun
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A fact is something that is true.
That is not just my idea, it is a fact.
—
A fact is a piece of information.
He collects little-known facts.