The main difference between affect and effect is in their grammatical role. The most common use of affect is as a verb, to have an effect on something or to cause it to change. The most common ...

A user on Twitter asked me recently about the difference between "affect" and "effect." Specifically, she wanted to know which to use in the phrase "the affect/effect of celebrity endorsements." The ...

Affect and effect are notoriously tricky. It doesn’t help that each can be both a noun and a verb, so you’re actually dealing with four words rather than two. To keep all these straight, know how the ...

Each is a verb and a noun, but correct usage depends, of course, on the context and intended meaning. Here’s guidance for veteran writers and novices alike on keeping them straight. Among the pairs of ...

It's all the Katrina threads. I keep seeing that the storm effected something or something about the affects of the storm. Effect is a noun. It means a change which is the result or consequence of an ...