The term innovation has long had multiple definitions. Why? Because, in spite of (or perhaps because of) wide usage and continual interest, the term has lost precise meaning for many.
Jeremy Utley and Perry Klebahn think you should measure your ideas. The Stanford Hasso Plattner Institute of Design (aka dSchool) professors call this metric your Ideaflow, which is also the title of their 2022 book on the subject.