Okay kiddo, imagine a big round ball. This ball is our home, Earth. It's so big that we need to draw lines on it to help us figure out where we are. These lines are called meridians.
Now, the 111th meridian west is a special line that runs from the North Pole all the way down to the South Pole. This line helps us determine where things are located in relation to it.
For example, if you are standing on the 111th meridian west, you know you are exactly 111 degrees away from the Prime Meridian, which is another important line that helps us figure out where we are on Earth.
This meridian also passes through different countries and states like Canada, United States, Mexico, and even a little bit of Antarctica! It's like a secret code to help people around the world communicate and understand where things are.