When two grown-ups love each other very much and want to spend their lives together, they often get married. This means they have a special ceremony and exchange rings to show that they are committed to each other.
After they get married, people often wear something special to show they are married. For example, women might wear a special ring on their left hand called a wedding ring, and men might wear a ring too.
Sometimes, people wear other special things to show they are married. For example, in some countries, married women wear a special type of clothing called a saree or a bindi. Sometimes, married men wear a special type of hat or a turban.
These things are called "visual markers," which means they help people know that someone is married just by looking at them. It's like wearing a name tag that says "Hi, my name is Married!"