What is Leverage?

Leverage definition and meaning on Dictionary terms:
the action of a lever, a rigid bar that pivots about one point and that is used to move an object at a second point by a force applied at a third.
the mechanical advantage or power gained by using a lever.
power or ability to act or to influence people, events, decisions, etc.; sway: Being the only industry in town gave the company considerable leverage in its union negotiations.

the use of a small initial investment, credit, or borrowed funds to gain a very high return in relation to one’s investment, to control a much larger investment, or to reduce one’s own liability for any loss.

verb (used with object), lev