> ## Documentation Index
> Fetch the complete documentation index at: https://docs.beaconrevenue.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Definitions

> What each Beacon figure means, how it is calculated, what it is built from, and what it is not.

Each article defines one value Beacon publishes: what it means, how it is calculated, which systems it is built from, how fresh it is, what moves it, and what it is commonly mistaken for.

<Columns cols={2}>
  <Card title="Lifecycle stage" icon="list-check" href="/definitions/lifecycle-stage">
    Which of eight post-sale stages an account is in, and the condition that moves it to the next.
  </Card>

  <Card title="Segment" icon="layer-group" href="/definitions/segment">
    Which commercial group an account belongs to, and the six dimensions that place it there.
  </Card>

  <Card title="Churn risk" icon="triangle-exclamation" href="/definitions/churn-risk">
    A 0-100 measure of retention risk, its five inputs, and the thresholds that flag an account.
  </Card>

  <Card title="Net revenue retention" icon="chart-line" href="/definitions/net-revenue-retention">
    Recurring revenue kept and grown from existing customers over a period, excluding new business.
  </Card>
</Columns>

## Not yet published

Definitions for other values appear here as each value ships.