> How the [[Meaning|meaning]] of a term is pinned down - fixing which things fall under it, and why. ^definition A definition is not the [[Meaning|meaning]] itself but the act of pinning it down, so a term can be applied by someone who was not present when it was coined. Which way of pinning a term down is even *possible* for a piece of knowledge says how mature and how transferable it is - the move toward stating a rule is the move from a head to a written, shareable form.