Absorption and regurgitation are two opposite processes that occur in different contexts. Absorption refers to the process of a material or substance being taken up by something else, such as a sponge absorbing water. Synonyms for absorption include assimilation, uptake, and ingestion. On the other hand, regurgitation refers to the act of expelling something that has already been ingested or absorbed. It can also refer to the repetition of information without much thought or understanding. Synonyms for regurgitation include vomiting, disgorging, and repetition. Understanding the nuances of these words and their synonym can help to improve communication and avoid confusion in various settings.