Define-a-Thon books are now available everywhere books are sold. Check out the American Heritage® Dictionary Define-a-Thon® for the High School Freshman and the American Heritage® Dictionary Define-a-Thon® for the High School Graduate.

What is a Define-a-Thon?

It's a new word game sensation based on the book series from the editors of The American Heritage Dictionary. Contestants are given a definition and have to choose the correct answer word from four choices.

Why host a Define-a-Thon?

Define-a-Thons are great in-store activities—all you have to provide is an MC to read the questions. The authorless event kit includes everything else that is needed to host the event. Best of all, if you are a bookstore or library and you hold your event during National Define-a-Thon Week, we will supply a prize.

Why Define-a-Thons?

Being able to spell a word doesn't necessarily mean that you know how to use the word. Define-a-Thons are a great way to build vocabulary in an entertaining environment.

Who can participate in a Define-a-Thon?

The words in this event kit are geared towards adults. It is best to have a group of 16-20 people participate.

How long is a Define-a-Thon?

The optimal length is 45 minutes, but it can be adjusted to the amount of time you have.