---
type: convention
title: Glossary
description: The domain vocabulary — one meaning per word, so documents and coding agents stop guessing.
tags: [convention]
timestamp: {{DATE}}
---
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# Glossary

## Terms
- **Order** — a paid-for cart; exists only after a successful charge. Rows in
  [orders](</Data/main/Tables/orders.md>).
- **Charge** — one attempt to take payment; may fail without creating an order.
- **Cart** — the pre-payment collection of items; never persisted as an order.
- **Decline** — the provider refusing a charge; soft (retryable) or hard (not).

## Rules
- Documents use these words with exactly these meanings; a new meaning means
  editing this glossary first.

## Open questions