Azure Reservation
Azure's commitment to a specific resource type, such as a VM size or database capacity, in a region for one or three years, in return for a discount. Reservations can be exchanged or, within limits, refunded. Why it matters: Like any commitment, it pays off only if it stays well used.
Read the term in context.
Each row is a lesson that uses this term. The lesson where it first appears is the canonical definition.