The term "Sea Cole" can refer to a number of different words. Some synonyms for this term might include seaweed, kelp, sea grasses or marine vegetation. Others might use the term to refer to sea coal, which is a type of coal that is produced when organic material is compressed and heated under water. Synonyms for this type of coal might include marine coal, underwater coal or even sea-borne coal. Regardless of the specific meaning of the term "Sea Cole," there are many different synonyms and related words that can be used to describe this important aspect of our planet's marine ecosystems.