Real Dictionary

influence
uncountable noun: Influence is the power to make other people agree with your opinions or do what you want.
verb: If you influence someone, you use your power to make them agree with you or do what you want.

influence in American English
the flowing of an ethereal fluid or power from the stars, thought to affect people's character and actions
to exert or have influence on; have an effect on the nature, behavior, development, action, or thought of
noun: the capacity or power of persons or things to be a compelling force on or produce effects on the actions, behavior, opinions, etc., of others

influence in British English
noun: an effect of one person or thing on another