A frown is when someone looks unhappy or displeased, often with their eyebrows lowered and mouth turned down.
You might see people frowning on public transportation because they're annoyed at being stuck in traffic. You could also frown while concentrating hard on a difficult math problem – it's like your face is saying, "This isn't easy!" If you ask someone to make a decision and they start frowning, it might mean they're not sure what to do.
A facial expression in which the eyebrows are brought together, and the forehead is wrinkled, usually indicating displeasure, sadness or worry, or less often confusion or concentration.
