Woodcoal is a commonly used fuel source that is made from wood through a process of carbonization. There are different synonyms that can be used for the word 'woodcoal'. Some of these include charcoal, carbon, lignite, and peat. Charcoal is the closest substitute as it also involves the process of carbonization but from burnt wood rather than the raw wood used in the production of woodcoal. Carbon is a synonym for the element found in woodcoal, making it another apt description. Lignite is another fuel source extracted from the earth's layers that can replace woodcoal. Lastly, peat can be another alternative as it is made from partially decomposed vegetation and is used as a fuel source.