Definition of the word all out

The phrase "all out" is an English slang expression that is used to describe an intense or complete effort to achieve something. The origin of this term can be traced back to the early 20th century, specifically during World War I, when it was commonly used in the context of military tactics. During the war, the phrase "all-out" was used by commanding officers to describe a complete and total commitment of resources to a particular objective, such as troops, artillery, and supplies. This concept was known as the "grand assault," where all available forces were thrown into a single, concentrated attack in order to achieve the greatest possible impact. As the expression became more widely used, it entered into common parlance and began to take on broader meanings beyond the military context. Today, "all out" is commonly used to describe any situation in which maximum effort is being expended, such as a sporting event, a full-court press in basketball, or a last-ditch effort to complete a project on time. In general, the term "all out" has become synonymous with a complete and total commitment of resources, energy, and focus to achieve a specific objective or outcome. It implies a sense of urgency and intense focus, and is an expression that is still frequently used today in both formal and informal contexts.