My definition has already been given. 'Force is something that can create changes in a body'.

Not that I don't like mathematics in the system. Mathematics is the tool, and it should remain as such, 'a toll to quantify mass, energy, force etc'. And there is no other tool other than mathematics. But, mathematical definitions are improper. The mathematical definition of force gives the wrong (in my opinion) notion that force imparts energy. What I argue is force cannot impart energy.

The speed of the orbiting body does not increase; that means its energy does not increase. Technically, based on the mathematical definition of force, you can say that it is accelerated towards the centre of the circular orbit. Actually it is the force that is acting towards the centre. When we ask,"How much force?". Then the answer comes, " force enough to create certain acceleration".