Affect Versus Effect
Most of the time "affect" is a verb and "effect" is a noun, but there are exceptions. We have an example, a memory trick, and a cartoon to help you remember when to use "affect" or "effect."
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Verbs Are Actions, and ‘Action’ Starts with A
Verbs are often actions, and the word action starts with the letter A, just like the verb affect. If the word you want describes an action, then you want the word that starts with an A—affect.
See if you can substitute another verb for the word you want. Here’s an example. If your sentence is The arrows affected Aardvark, you can tell that affected is a verb first because it can become past tense by adding -ed (nouns don’t do that), and second because you can substitute other verbs such as hurt, poked, and hit:
The arrows affected Aardvark.
The arrows hurt Aardvark.
The arrows poked Aardvark.
The arrows hit Aardvark.
Alternatives to ‘Affect,’ the Verb
The verb affect is vague, and when people don’t know whether to use affect or effect, sometimes they use impact instead, which besides having problems of its own, is also vague. When you’re thinking about using either of those words, see if you can use a better verb, a more specific verb, instead.
Here’s an example: Maybe you’re trying to write something like
The weather affected Aardvark’s holiday plans.
What does affected really mean in that sentence? It’s better to be more specific, and write something like
The weather ruined Aardvark’s holiday plans.
Now you know what really happened, not just that the plans were affected, somehow changed, but they were changed in a bad way—they were ruined.
Now let’s move on effect, the noun.