ELI5: Explain Like I'm 5

Lightsaber

A lightsaber is a weapon that Jedi (and some bad guys) use in the Star Wars universe. It's like a sword, but instead of having a metal blade, it's made out of light!

The handle of a lightsaber has a button on it that when pushed, makes the blade of light come out. The color of the blade can be different depending on who made the lightsaber or what crystals you put inside it. There are blue, green, red, and purple lightsabers.

The blade of the lightsaber is super hot and can cut almost anything in the universe, like doors or other weapons. It also makes a cool humming sound when it's turned on.

Jedi use lightsabers to fight enemies, defend themselves, or challenge each other in a friendly duel. It takes a lot of training to be a good lightsaber fighter and Jedi have to learn how to use the force to help them in battle.

In summary, a lightsaber is a make-believe sword made out of light that Jedi use to fight bad guys in the Star Wars universe.