Q: Does "float" have the same meaning in the following two sentences?

Float the plaster.

The balloon floated off into the distance.

A: different meanings

Q: Does "point" have the same meaning in the following two sentences?

We should meet at a pre-arranged point.

She walked to a point where she could survey the whole street.

A: the same meaning

Q: Does "head" have the same meaning in the following two sentences?

I've got to go to the head.

This song keeps going through my head.

A:
different meanings