What's the difference among influence, affect and impact (verbs)?
These have overlapping meanings. I'd say that "affect" is the most general: causing a change or result in something. "The nearbyocean oftenaffectsour weather." "The recent tragedy reallyaffectedher."
I tend to use "influence" when there is a sense of control being exerted, especially when there is a specific result: "Your teachersofteninfluencethe direction your life takes." "Tolkien's storiesinfluencedalmost all subsequent literature in the genre offantasy."
Use "impact" when there is a particular element of force involved; I'd say that "impact" also often indicates negative orunwanted influence. "The decline in the stock marketimpactedmany people's plans for retirement." be Note that these are broad generalizations. You could often interchange these verbs and the sentences would still correct and natural.
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