What term refers to the overall availability of a product for future use?

The term that refers to the overall availability of a product for future use is "stock." This concept encompasses all goods and materials that a business has on hand, ready for sale or use. Stock is an essential part of inventory management, as it helps businesses understand what products are available to meet customer demand and ensures they can operate smoothly without delays caused by shortages.

While "inventory" can also refer to a company's supplies, it is typically associated with a complete record of all stock on hand. "Supply" relates more to the availability of a product in a broader market context, often encompassing both what is produced and what consumers can acquire. "Resources" generally refer to the broader set of assets a business has, including not just products but also human resources, financial resources, and other types of capital necessary for operations.

Thus, "stock" specifically emphasizes the physical goods that are maintained for immediate or future use, making it the most precise term for the overall availability of a product.