Colons serve one purpose: pointing to things.

It’s 3:15 a.m. You wake up in a cold sweat. You had the nightmare again: punctuation marks had been chasing you through the halls of your elementary school. You laugh at how silly the dream seems now that you’re awake. You get up to grab a glass of water, but you don’t notice the colon hiding in the shadows under your bed. There’s nothing you could do to protect yourself even if you did.

Okay, maybe colons aren’t that scary, but the fact is most students are intimidated by colons because they don’t know how to use them.


How to Use a Colon

Good news! There’s only one use for a colon you need to remember for the test: colons are used after complete sentences to introduce a word, list, phrase, or clause somehow connected to the rest of the sentence.

Sentence : anything you want.
You got it: a visual representation of what I said in the previous paragraph.

On questions about punctuation, you should be looking for the overall sentence structure anyway, so if you find there’s a complete sentence before the punctuation, you can use a colon to introduce whatever comes next.


Let’s look at a sample question:

After I left the store to go home, I discovered I had forgotten everything: the milk, the eggs, and the bread. 

F. NO CHANGE
G. forgotten. Everything,
H. forgotten everything;
J. forgotten everything

My first step in approaching this question – after determining that it’s a punctuation question – is to determine the sentence structure. In this case, I’m looking at what’s happening before and after the colon.

What’s going on before the colon? “After I left the store to go home, I discovered I had forgotten everything.” That’s a complete sentence. Notice how the sentence sets up the expectation of some explanation of “everything.”

What’s going on after the colon? “The milk, the eggs, and the bread” is a list of everything I forgot at the store.

Without even looking at the other answer choices, I can see that the colon is used correctly; therefore, the answer must be F. No Change.


Feel the Power

The only reason you should be afraid of colons is because they are so powerful. With other punctuation marks, you have to worry about what comes before and after them. Colons can connect anything you want to a complete sentence—as long as the complete sentence comes first.

Once you feel more confident with colons, you can even use them in your own writing. After all, the best way to conquer our fears is to face them.


Want to learn about semicolons?
Head over to this blog post! If you found this helpful, please share it with someone who may find this information useful as well.

Similar Posts

  • |

    Clear and Concise Writing

    Congenial prose is recherché in these neoteric times. I’ve discerned that a multitude of the populace—from the proletariat to the bourgeoisie—are unaffectedly at sixes and sevens as to what constitutes commendable composition. Translation: Good writing is rare. I find many people don’t know what makes a piece of writing “good.” The point of writing is…

  • |

    A History of Revisions to the SAT, Part 3: 1994-2024

    Wait! Make sure to read Part 1 and Part 2 of this series first! Welcome back to the third and final installment of Josh Dunks on the College Board. When we left off last time, the College Board was feeling the heat over falling test scores. They had kept the test format the same for…

  • |

    Semicolons

    Semicolons are just what they sound like.  Since you understand those definitions, you understand semicolons perfectly. Go forth and use them with confidence. Wait. You still don’t entirely understand semicolons? Seriously‽ Alright, let’s try this again. You may recall that with a full colon—no jokes, please—you can put anything you want after the colon as…