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Every term below is defined somewhere else on this site first — inside the article that uses it, where it has the context that makes it mean something. This page is the index: one place to look a word up, and a link to where it is actually being used.
The definitions are not rewritten here. A term defined on more than one page uses one wording across all of them, which an audit enforces, so what you read below is word for word what the article says. Where a term appears in several articles, all of them are listed.
244 terms, 417 definitions, drawn from the resource library and the calculators.