Every one of these gets used in a vendor deck as if you already know it. Each entry is a full explainer written for the person signing the invoice, not the person writing the integration. No jargon tax.
What the word actually commits you to when a vendor says it.
The plumbing a CEO ends up approving without being told what it is.
The three numbers every launch post quotes. What each one measures, and what it hides.
What you are actually buying, and what you get to keep.
Definitions tell you what a thing is. These tell you what to do about it.