Varec is a common term for seaweed, specifically kelp, that has been burned to produce a form of alkali. While varec is a unique word for this substance, there are many synonyms that can be used to describe it. Some of these synonyms include soda ash, barilla, seaweed ash, and kelp ash. Other synonyms for varec can include marine algae, seaweed flakes, and kelps. In some cases, varec can also be referred to as potash, a term that is commonly used to describe a range of plant-based substances that contain potassium. Regardless of the term used, varec and its synonyms are an important resource for a variety of industries including agriculture, food production, and soap making.