The word "umbras" has various synonyms that are used in different contexts to convey the same meaning as shadows or dark areas. Some commonly used synonyms for umbras include shades, dark spots, silhouettes, outlines, and penumbras. Each of these words has a slightly different connotation, with shades generally referring to the darkened areas created by an object blocking light, while silhouettes and outlines generally refer to the shape or form of the object casting the shadow. Penumbras, on the other hand, refer to the partial or partial shadow cast by an opaque object, creating a gradation of light and shadow. Whether used in art, literature, or everyday life, these synonyms offer a rich vocabulary for describing the many forms and effects of shadows.