A significant number is a term used to describe any numerical value that holds special importance or relevance in relation to a particular topic, situation or context. This could include numbers that are associated with important dates, events or milestones; statistics and data that carry meaningful insights or trends; or values that have been deemed critical for success, progress or achievement within a given framework. In essence, the term "significant number" refers to any numerical value that carries special significance in its own right, and is often used as shorthand to convey important information or insights.