crease

A crease isn't just a random mark—it's the clear line left behind when something flexible is bent, folded, or pressed. Think of the crisp lines in a freshly folded map or the natural lines in your palms. It can also describe changes in the skin, like the gentle lines that appear around someone's eyes when they laugh.

Sometimes, a crease is a sign of character and age, like the deep lines in a well-worn leather jacket. Other times, it is a mark of care: tailors press sharp creases into trousers to create a professional look. In sports like cricket or hockey, a "crease" is a marked line or area that matters for the rules. Whether intentional or accidental, a crease is always a visible sign of pressure or movement.

A crease is a line—sometimes a ridge, sometimes an indentation—produced on a surface such as paper, fabric, or skin by folding, pressing, or crushing it. Unlike a temporary shadow, a crease implies a semi-permanent impression or a change in the material's shape. For example, "The old letter was fragile, its paper beginning to tear along the heavy creases," or "A smile formed familiar creases at the corners of her mouth."

Creases can vary from subtle to deep. A faint crease in a forehead might signal a moment of worry, while the deep creases in an old leather saddle tell a story of decades of use. They are frequently used in the world of fashion, where a "pressed crease" in a pair of slacks is the hallmark of a sharp, formal outfit.

The word also carries specialized meanings. In sports, it refers to a specific marked line or area: in cricket, creases are lines at the wicket used to judge things like no-balls and run-outs, and in hockey, the crease is the area in front of the goal that comes with special rules for the goalkeeper and attackers. As a verb, to crease something is to form these lines in it—sometimes by accident ("Don't crease the poster") and sometimes on purpose ("She carefully creased the paper along the guideline"). In informal British English, "to crease up" means to laugh a lot.

Figuratively, a crease can be a small flaw or complication in something that should be smooth, like a plan, a conversation, or a relationship. Ultimately, a crease is the visible result of a force that has changed a surface's shape.