indicator — One public economic series the site tracks (payrolls, a yield spread, a survey), with its own page and its own color rule.
gauge — One of the three State of the Economy composites: a weighted blend of indicators, each ranked within its own history, read on one common scale where higher means healthier.
regime — The stage of the cycle the gauges name each month by fixed rules: Expansion, Slowdown, Contraction or Recovery.
band — One range of an indicator’s values with one color and one word.
first published — The value a figure carried on the day it first came out, before any revision; the site keeps those values.
revision — A later change to a figure already published; the Revisions Ledger measures how far first prints miss.
Time Machine — The heatmap on a past date: every cell as it was known that day, not as revised since.
breadth — How much of the economy is moving the same way: the count of indicators improving against those worsening.
period — The months a reading stays at one level.
episode — A period that a rule opens and closes, so it can be counted.