lineament

The word lineament refers to a distinctive feature or outline that helps define how something looks. It is used especially for the features of a face, but it can also describe the visible form of a body, an object, or a landscape. When you read about the lineaments of a face, the idea is usually the set of features that give that face its particular look, such as the nose, mouth, jaw, or brow. The word points to the parts that make the whole appearance clear.

Historically, lineament grew out of the idea of a line or outline, which is why it is closely linked to shape and visible features. In older or literary English, writers often use it when describing a person's face: "the strong lineaments of his face" suggests bold, clear features. In the same way, someone might describe the lineaments of a coastline, a mountain ridge, or another scene whose shape stands out clearly.

The word is fairly formal and somewhat old-fashioned, so it is much more common in novels, essays, history writing, or careful description than in everyday conversation. Most of the time, it refers to visible features rather than hidden qualities. If you use it, you are usually drawing attention to the shape, outline, or defining marks of something seen.

So if a painter studies a face before putting brush to canvas, or a writer lingers over the shape of a valley at sunset, they may be noticing its lineaments: the defining lines and features that give it form and make it recognizable.