expend

To expend something is to use it up, usually in the form of energy, resources, time, money, or effort. Think of a marathon runner: they expend a huge amount of physical energy to reach the finish line. It is not just about physical resources, though; you can also expend emotional energy worrying about a problem, or expend a lot of effort trying to fix a difficult situation. The word suggests a deliberate and purposeful use of something valuable.

The word comes from the Latin expendere, meaning "to weigh out" or "to pay." So, when you expend something, you are in a sense "paying" with it to get a result. A company might expend large amounts of money on research and development in hopes of future profit, while a detective might expend countless hours investigating a complex case.

To expend means to use up or spend, particularly resources like time, energy, money, or effort. It implies the deliberate application of something valuable toward a specific purpose, often with the understanding that it will be diminished or fully consumed in the process. For example, a military report might state, "The unit expended all its ammunition during the engagement," meaning every round was used in the heat of battle.

Expend is not limited to physical materials. You can expend emotional labor on a struggling relationship or expend your mental reserves trying to solve a taxing puzzle. To say, "She expended considerable effort trying to mediate the dispute," suggests a deep, exhaustive commitment to finding a resolution.

The word often carries a sense of thoroughness or intensity that the word "spend" lacks. While you might spend money on everyday groceries, you expend energy during a high-intensity workout. The difference lies in the degree and intent; expend implies a more complete, forceful, and focused consumption of a resource to meet a goal.

Historically, the word has also been used in contexts of sacrifice, particularly regarding things—or even lives—that are deemed "expendable." This highlights the idea that something valuable can be completely used up in pursuit of a larger objective. Whether you are discussing fuel for a rocket, effort on a career goal, or resources in a conflict, to expend is to use something up fully and purposefully.