Final answer:
The term for the current cost to rebuild a structure like Notre Dame is the replacement cost or reconstruction cost, which includes modern expenses for materials and labor.
Step-by-step explanation:
The cost associated with rebuilding a structure today, such as the Notre Dame Cathedral following the tragic fire in 2019, is often referred to as the replacement cost or reconstruction cost. This term covers the expenses for materials, labor, and other factors that affect the modern building process. In the context of Notre Dame, the reconstruction efforts sparked a global conversation about how to approach the rebuild, debating whether to stay true to the original design, incorporate new technologies, or reflect a combination of the past and future in the restoration process.