What the heck is the “Oxford comma?” you might ask.
Very good question. I’ve known what it is for a long time — I just didn’t know it had that very upper-crust name attached to it.
You’ve probably used it, or seen it, or debated about using it yourself. I just used it in the previous sentence.
Can you guess what it is?
The Oxford comma (also known as the serial comma or the Harvard comma) is the comma that appears after the final item in a list of three or more items before the word “and” or “or.”