have an impact on (someone or something)(redirected from have an impact on one)
have an impact on (someone or something)
To affect or influence someone or something. Of course your decision has an impact on me—I'm your wife! Don't worry, your grade on that assignment has very little impact upon your overall grade for the semester.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
have an impact on someone or something
to leave an impression on someone or something. The sharp change in interest rates had an impact on the housing market. Your story really had an impact on me.
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.