Re-duplicate is a word that means to replicate or reproduce something. When trying to find antonyms for the term re-duplicate, one may consider words that convey the opposite meaning. Some options to consider include words such as "reduce," "prevent," "eliminate," "substantiate," or "verify." The term "reduce" implies a decrease in quantity or size and therefore diverges from the idea of replicating something. "Prevent" refers to stopping something from happening, while "eliminate" means to completely remove something. "Substantiate" refers to providing evidence or proof, while "verify" means to confirm or check the accuracy of something. By using these antonyms, one can express the opposite meaning of re-duplicate effectively.