1. Marks or stains that are blurred or smeared, typically made by rubbing or pressing something dirty against a surface
There are smudges on the window glass.
Há manchas de graxa no vidro da janela.
2. Third person singular or plural form of the verb 'to smudge': to mark or blur with smudges
She smudges the charcoal with her finger to create a shadow effect.
Ela borra o carvão com o dedo para criar um efeito de sombra.
3. A blurry or indistinct mark or image
The photograph only shows a smudge where the face should be.
A fotografia mostra apenas um borrão onde deveria estar o rosto.