líneas

Líneas is the Spanish plural for línea and appears in many domains to denote long, narrow marks, routes, or sequences. The term is used across disciplines to refer to both physical objects and conceptual constructs, and its meaning is shaped by context.

In geometry, a line is a one‑dimensional figure that extends without end in both directions and contains infinitely many points. A line is typically defined as straight in Euclidean space and can be described by two distinct points or by a linear equation. Related notions include the line segment, which has endpoints, and the ray, which starts at a point and extends in one direction.

In geography and cartography, lines organize spatial information. Lines of latitude and longitude define coordinates on the globe: parallels run east–west at constant latitudes, while meridians run north–south. Other lines on maps may indicate borders, routes, or transportation networks.

In typography and printing, a line refers to a horizontal row of characters. Line length, line breaks, and leading influence readability and layout, shaping how text fits on a page or screen.

In transportation and infrastructure, lines denote routes served by networks such as railways, bus systems, or shipping services. In art and design, lines function as visual elements that define shapes, movement, or rhythm; in literature, lines can refer to lines of poetry or dialogue, organizing sound and cadence.

See also: line, line segment, latitude, longitude.