"At one fell swoop" is an idiomatic phrase that means doing or achieving something in a single decisive action or with a single blow, often involving drastic or far-reaching consequences. The term "fell" here refers to something that is cruel, destructive, or calamitous, while "swoop" implies a swift and sudden movement or action.
The phrase is commonly used to emphasize the speed, efficiency, or magnitude of an event or action. It conveys the idea of accomplishing multiple objectives or resolving multiple issues simultaneously, thereby eliminating the need for multiple steps or actions. The phrase is often employed when describing a situation where something is achieved quickly and completely, with an immediate and profound impact.
For example, someone might say, "The new CEO made drastic changes to the entire company at one fell swoop," indicating that the CEO implemented a series of significant and comprehensive changes all at once, without gradual or incremental modifications. Alternatively, one might say, "She cleared out her closet at one fell swoop," signifying that she tackled the task of decluttering and organizing her wardrobe all in a single, efficient effort.
Overall, "at one fell swoop" suggests a decisive and efficient manner of achieving a goal or resolving an issue, often resulting in a substantial or transformative outcome.
