The term "extract" generally means to remove or take out something from a larger whole. Some of the antonyms for the word "extract" are deposit, insert, return, replace, and input. The opposite of extracting something would be depositing it or putting it back in. For example, while extracting money from the bank, an opposite action would be depositing money into the account. Similarly, while extracting water from a pool, the opposite action would be to put water back in, effectively refilling the pool. By understanding the antonyms of words like extract, we can expand our vocabulary and improve our communication skills.