An eyebrow is a strip of hair located above the eye, serving both aesthetic and functional purposes. It helps to enhance facial expressions and plays a role in non-verbal communication. Eyebrows also help to keep moisture, such as sweat and rain, from entering the eyes, improving vision and comfort. The shape and thickness of eyebrows can vary widely among individuals and cultures. Many people groom their eyebrows through methods like plucking, waxing, or threading to achieve a desired look. Eyebrow styles can be influenced by trends in beauty and fashion, often seen in celebrities and social media influencers.