The phrase "beautiful face" refers to a person's physical appearance, specifically their facial features. It is used to describe someone who has attractive or pleasing features on their face that are considered beautiful by societal standards. This can include things like clear skin, symmetrical facial structures, and other characteristics such as full lips, bright eyes, and a strong jawline. The phrase "beautiful face" is often used to compliment someone's appearance or describe someone who is generally considered good-looking by others.