noun The power to affect, control or manipulate something or someone; the ability to change the development of fluctuating things such as conduct, thoughts or decisions.
I have absolutely no influence over him.
noun An action exerted by a person or thing with such power on another to cause change.
I'm not able to exercise influence over him.
noun A person or thing exerting such power or action.
He has been a great influence on the voters during the elections.
noun An element believed to determine someone's character or individual tendencies, caused by the position of the stars and planets at the time of one's birth.
noun The action of flowing in; influx.
noun Electrostatic induction.
verb To have an effect on by using gentle or subtle action; to exert an influence upon; to modify, bias, or sway; to persuade or induce.