The phrase "for reason" is often used to explain why something has happened or why a decision has been made. However, there are many synonyms that can be used in its place, such as "justification," "rationale," "motive," "cause," or "purpose." These words can add depth and clarity to a statement, allowing the reader or listener to better understand the thought process behind a particular action or event. By utilizing alternative phrases, one can convey their ideas in a more nuanced and effective manner, leading to clearer communication and more insightful discussions.