Working language

When people from different places talk to each other, they usually use a language that they both know so they can understand each other. That language is called a "working language". It's like a special tool that helps people communicate better so they can work together and get things done. Just like how you use crayons or pencils to draw pictures in school, people use working languages to talk to each other when they need to get things done. Sometimes people use different working languages, but they can learn each other's languages or use a new language that they both know. When people understand each other, they can work better and get things done faster.