When something is long, there are a plethora of synonyms to use instead of continually repeating the same word. Some examples of synonyms for be long include elongated, extended, stretched out, lengthy, protracted, and prolonged. Other synonyms may include drawn-out, towering, lofty, or never-ending. These words are all used to describe an object or event that takes up a significant amount of time or space. Depending on the circumstance, using synonyms for be long can help add variety to your writing and speech, making it more engaging and interesting for your audience.