Yes, even if you have Adobe Flash enabled properly in your browser, you may not have it enabled for this specific page. Yes, we know, it's a pain. Each browser has a different set of instructions for whitelisting pages, so we can't include them here, but you can find information by searching for "how to control flash for specific websites" in your favorite internet web search.
Why do you use Flash?
Tell us about it. These Flash games aren't developed directly by Merriam-Webster so we haven't been able to update them. We are looking to replace these games with HTML5 versions as soon as we can.
Ok, fine, I can't use flash, but I still want to play a game!