What is the meaning of Friction?

The rubbing of one object or surface against another.

A force that resists the relative motion or tendency to such motion of two bodies in contact.

Massage of the body to restore circulation.

Conflict, as between persons having dissimilar ideas or interests; clash.

(Second Sino-Japanese War) Conflict, as between the Communists and non-Hanjian Kuomintang forces.

friction: the rubbing, the conflict or the physics force

friction

Source: wiktionary.org