Hermes is a word that can mean many different things, but it's often used to talk about a character from ancient Greek stories. He was a messenger god, which means he would deliver important messages from one person to another.
But Hermes wasn't just any messenger - he was really fast! He wore special shoes with wings on them that helped him run super quickly. He also had a special staff that could do cool things like put people to sleep or wake them up.
In addition to being a messenger, Hermes was also in charge of things like trade and commerce (that means buying and selling stuff). People would pray to Hermes to make sure their business deals went well.
Some people also think of Hermes when they talk about luxury fashion brands like Hermes the label. This company is named after the god, and it makes really high-quality clothes, handbags, and other accessories. So when you hear the word "Hermes," it could be talking about a mythical character or a fancy clothing brand!