Englishfor English speakers
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.
base
Noun
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Something's base is its lower part; the solid part that touches the floor or touches the earth and keeps the other parts of the thing up.
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Something's base is its most important part.
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A base is a building for military personnel and material.
base
Adjective
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Rude, unfair, or unkind.
The people who make those sex videos are really base.
base
Verb
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When something or someone is based in a place, they do most of their work in that place.
The airline is based in Toronto, but flies all over the world.
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If you base x on y, you build or make x on, using, or to be like y.
The movie is based on the book.