smudge

Smudge refers to a mark or blur caused by rubbing, touching, or staining a surface. As a noun, a smudge is a dirty or blurred mark, such as fingerprints on glass, ink on paper, or grease on a countertop. Smudges can occur unintentionally during handling and may obscure details or affect readability.

As a verb, to smudge means to spread or smear a substance, or to cause something to appear blurred or smeared. Examples include graphite, ink, or makeup that is rubbed and spreads, or wet materials that smear when touched. In art and photography, smudging can describe deliberate blending or softening of edges to create a hazy or painterly effect, whether by hand or with tools.

In digital media, many image-editing programs offer a smudge tool that simulates dragging pixels across an image. This tool pushes colors and tones to neighboring areas to produce smeared or blended transitions, often used for retouching or creative effects.

Smudging also refers to cultural practices in which certain herbs are burned as part of a cleansing or protective ritual. A smudge stick or bundle is traditionally used to waft fragrant smoke through spaces or around individuals.

In cleaning contexts, smudges are typically removed with microfiber cloths, glass cleaners, or soap and water, depending on the material. Preventing smudges involves careful handling, protective coatings, and regular cleaning to maintain clarity and appearance.