The wings create a force called lift that goes against gravity, which makes the plane get off the ground.

By "supporting" the bag you are simply moving the point of support against gravity from one location to another.

He tried to stand up, but the struggle against gravity was overwhelming.

In fact, the spinning of the earth works against gravity.

If they work against gravity, the fluid may not flow.

This way, the cardiovascular system does not need to work against gravity for blood to reach the brain.

The hand seemed to come up against gravity, against his will.

With the rock on top of the building this work against gravity is stored as potential energy.

The patient must be able to sit in a wheelchair so that he/she can move the arm against gravity.

It is the same kind of work against gravity that we do by climbing upstairs or standing up, he said.