Gravity can mean seriousness, or it can mean the physical force that makes a book dropped out of a window fall rather than hang in midair. The following sentences provide examples of both meanings:
we all walk on gravity to school
Gravity is a thing that keeps object on da ground :)
The boy cursed at gravity for ruining his lollipop by letting it fall to the ground.
Earth has gravity rather than other planets.
The leaf fell to the ground due to the affects of gravity.
The most profound joy has more of gravity than of gaiety in it
gravity would be used in a sentence like this: The gravity of the Earth is a very important part of life.
Mrs.Tuft used a hydrometer to determine the specific gravity of a liquid
The water seemed to defy gravity.
A planets gravity is caused by the distorting effect its mass has on the fabric of spacetime.
There was no gravity on that planet.
Gravity is a thing that keeps object on da ground :)
The boy cursed at gravity for ruining his lollipop by letting it fall to the ground.
The gravity of the situation was beyond my understanding. We're held to the earth by gravity.
Earth has gravity rather than other planets.
The leaf fell to the ground due to the affects of gravity.
The force of gravity is what keeps us on the ground.
Gravity can warp and bend light.