Change by reversal is the process of turning something around or reversing its direction. Synonyms for this term include invert, transpose, switch, flip, reverse, and turn. Each of these words represents a different way to describe the act of completely turning something around, whether it be physically or metaphorically. These synonyms can be used to describe a variety of scenarios, including reversing a decision, flipping a coin, turning a project on its head, or inverting a mathematical equation. By employing these different terms, writers and speakers can enhance their vocabulary and express themselves more clearly and effectively.