If something has an effect on something or someone, it changes or influences that thing or person in some way. The meaning of EFFECT is something that inevitably follows an antecedent (such as a cause or agent) : result, outcome. How to use effect in a sentence. Effect vs. Affect: Usage Guide Synonym Discussion of Effect. An effect is an impression that someone creates deliberately, for example in a place or in a piece of writing. The whole effect is cool, light and airy. Effect is most commonly used as a noun meaning a result or consequence. Affect is most commonly used as a verb meaning to act on or produce a change in someone or something. “Affect” vs. “Effect”: What’s the Difference? Affect is usually used as a verb meaning to influence or produce a change in something, whereas effect is generally used as a noun that refers to a change resulting from something. The term effect is widely used to describe the outcome or result of an action or cause. It is a versatile word with applications in everyday language, science, psychology, and the arts. Effect is the result of an action, as in those “cause and effect” papers you might write in English class. Your topic could be how your late-night tuba playing (cause) has driven your roommate insane (effect). Effect is a powerful TypeScript library designed to help developers easily create complex, synchronous, and asynchronous programs. In this article, you’ll learn the difference between affect vs. effect, with grammar explanations, everyday examples, and simple tips to help you remember which one to use. EFFECT definition: 1. the result of a particular influence: 2. to produce or achieve the results you want: 3. If you…. Learn more.