gravity

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grav|ity /gr'ævɪti/
1 [N-UNCOUNT]
Gravity is the force which causes things to drop to the ground.
Arrows would continue to fly forward forever in a straight line were it not for gravity, which brings them down to earth.
see also centre of gravity
2 [N-UNCOUNT] oft N of n
The gravity of a situation or event is its extreme importance or seriousness.
They deserve punishment which matches the gravity of their crime...
Not all acts of vengeance are of equal gravity.
3 [N-UNCOUNT]
The gravity of someone's behaviour or speech is the extremely serious way in which they behave or speak.
There was an appealing gravity to everything she said.cen|tre of grav|ity (centres of gravity)
[N-COUNT]
The centre of gravity of an object is a point in it. If this point is above the base of the object, it stays stable, rather than falling over.

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