läike

Läike is an Estonian noun describing a bright, localized reflection of light on a smooth or polished surface—a gleam, glint, or sparkle. In everyday language it can refer to both natural and artificial light reflections, and in literature and media it is often used metaphorically to denote radiance or charm.

The phenomenon arises from specular reflection, where light reflects off a surface at a specific angle rather than scattering in many directions. The visibility and sharpness of a läike depend on surface roughness, the incident light, and the observer's viewpoint. Very smooth, highly polished materials such as metal, glass, or wet surfaces produce stronger and sharper läike, whereas matte or rough textures yield diffuse, faint highlights.

In practical contexts, discussing a surface's läike can help describe material quality, finish, or mood in a scene. In photography and visual design, readers or viewers notice läike as a cue for glossiness or wetness and as a factor in how texture is conveyed.

Etymology and usage: Läike shares roots with words for brightness and shine in Estonian; it is commonly paired with adjectives that describe degree (strong, faint) or color of reflected light.

See also: glint; glare; specular reflection; sheen.