Add Yahoo as a preferred source to see more of our stories on Google. The Oxford comma is the comma used before the final conjunction in a list of three or more items. When writing a list, of course, ...

The purpose of the comma and how the comma might change the meaning of the sentence was debated when the America Invents Act (AIA) was enacted in 2013. Because of a comma, the meaning of the Act was ...

Contrary to popular belief, commas don't just signify pauses in a sentence. In fact, precise rules govern when to use this punctuation mark. When followed, they lay the groundwork for clear written ...