The word "reduces" means to make something smaller or decrease its size, quantity, or intensity. The antonyms for the word "reduces" are words that suggest the opposite action. Two common antonyms for the word "reduces" are "increases" and "expands." The word "increases" means to make something bigger while "expands" means to make something broader or bigger in volume. For example, the company's profits increased significantly after the marketing campaign. On the other hand, without prompt measures, the pandemic will expand its reach rapidly. Therefore, antonyms play an essential role in defining the meaning of a word and can help reinforce and expand the overall context of the sentence.