Stigma is a mark of shame or disgrace that society attaches to something, often unfairly. When something carries a stigma, people treat it like it's embarrassing or wrong, even when it shouldn't be.

For example, there used to be a strong stigma around wearing glasses. Kids who needed them were sometimes called mean names or treated differently, even though needing glasses is perfectly normal. Today, that stigma has mostly disappeared, and some people even think glasses look cool.

Mental health conditions often carry an unfair stigma. Someone struggling with anxiety might hide it because they worry others will think they're weak, when really seeking help takes courage. This kind of stigma can prevent people from getting the support they need.

Sometimes stigma attaches to things that truly deserve no shame at all: asking questions in class, admitting you made a mistake, or being the new kid at school.

Today we use the word to describe an invisible but powerful mark of disapproval that can make people feel ashamed of things that aren't actually wrong.