Riveret is a term that describes a small stream or a tributary of a river. There are several synonyms for this word, including brook, creek, streamlet, rill, and runnel. A brook refers to a small, freshwater stream while a creek usually refers to a small, tidal channel. A streamlet is a small and narrow stream, similar to a rill, which refers to a small stream or rivulet. A runnel is a term used to describe a narrow channel of water that flows slowly. All these synonyms, including riveret, provide an excellent way to describe small bodies of water in the natural landscape.