Antonyms for the word "re-open" include "close," "shut," "lock," "seal," "terminate," and "end." These words convey a sense of permanency, finality, and conclusiveness, as opposed to "re-open," which suggests a reversal of a previous action or decision. For instance, a business could be "closed permanently," a door could be "shut tight," a container could be "locked securely," or a chapter could be "finished definitively." While "re-open" implies a return to a previous state, antonyms such as "close" and "shut" emphasize the importance of closure, completion, and resolution. Therefore, understanding the nuances of antonyms can help us appreciate the complexity and nuances of language.