Leaning

Leaning is the act or result of tilting away from an upright vertical position or from a reference plane. In everyday use, it can describe a physical posture, an object resting at an angle, or a metaphorical inclination toward a belief, idea, or action.

Physically, leaning involves a shift of weight and a change in the position of the body's center of gravity relative to the base of support. Stability requires the center of gravity to project over the base; increasing tilt raises the tipping moment. Friction and contact with a surface limit motion until an external force causes tipping.

Common examples include a person leaning against a wall, a person leaning forward in a chair to reach a task, or a ladder leaning to one side. In architecture and engineering, leaning structures acknowledge intentional tilts or soil-induced inclinations; the Leaning Tower of Pisa is a famous example illustrating how foundations and ground conditions affect stability.

Posture and ergonomics address how leaning affects the body during daily activities. Prolonged or excessive leaning can contribute to back, neck, and shoulder strain, so designs and practices aim to minimize unnecessary tilt and maintain a balanced, supported position.

Figuratively, leaning expresses preference or bias, as in someone leaning toward a particular option or ideology. The term describes a tendency or inclination rather than a firm commitment, and it can be used to convey partiality in judgments or decisions.