What term refers to the importance or usefulness of something?

The term that refers to the importance or usefulness of something is "value." This concept encompasses the significance that an item, idea, or resource holds in a given context, often relating to how much it is appreciated or deemed beneficial by individuals or society. In various fields, particularly in economics and ethics, value is critical as it influences decision-making, prioritization, and resource allocation. The other terms relate to concepts that generally convey a lack of importance or utility, making them unsuitable in this context.