Grammar

OK vs. Okay (vs. O.K.)

Learn when it's appropriate to use OK vs. okay vs. O.K. with Grammar Rules from the Writer's Digest editors, including a few examples of correct and incorrect usages.

Its vs. It’s

Learn when it's appropriate to use its vs. it's with Grammar Rules from the Writer's Digest editors, including a few examples of correct and incorrect usages.

Heroin vs. Heroine (vs. Hero)

Learn when it's appropriate to use heroin vs. heroine (vs. hero) with Grammar Rules from the Writer's Digest editors. Believe it or not, the heroic possibilities aren't quite as cut and dried as many expect.

Everyday vs. Every Day

Learn the everyday rules of when it's appropriate to use everyday vs. every day with Grammar Rules from the Writer's Digest editors. When is it correct to use everyday? When should you go with every day? Are they interchangeable or not?