Architonnerre

Architonnerre is a big, fancy word that means a special kind of lightning that is created by rockets! Imagine rockets shooting up into the sky and exploding with a big BOOM! When they do that, they create a bright light and loud noise, and sometimes even flames. That's what architonnerre is!

Now, let's break down that long word into smaller parts to make it easier to understand. "Archito" means "to launch" in French. "Nerf" means "nerve" in French, and "tonnerre" means "thunder". So, putting them all together, "architonnerre" literally means "to launch nerve thunder."

Cool, huh? So, the next time you see fireworks or rockets launch into the sky and make big noises and bright lights, you can say that you know all about architonnerre!