> For the complete documentation index, see [llms.txt](https://docs.zaui.com/octo/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.zaui.com/octo/glossary-of-terms.md).

# Glossary of Terms

[OCTo ](https://www.octospec.com)defines core terms that are re-used throughout the specification. A full description of those terms can be found on [OCTo Spec Website](https://octospec.com/taxonomy) but we have included a table below to get started.

| Term           | Definition                                                                                                                                                          |
| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| Reseller       | You are the reseller connecting using this API Specification                                                                                                        |
| Supplier       | The experience company on Zaui which you are connecting and reselling                                                                                               |
| Product        | A single experience, attraction, activity, tour or ground transportation                                                                                            |
| Option         | A variation of the product.  All products will have at least 1 option                                                                                               |
| Unit           | The ticketing type.  For example:  Senior, Adult, Student, Child, Infant                                                                                            |
| Booking        | A single booking, reservation or order, for a specific product and option and one or more units created using this API                                              |
| Unit Item      | A line item per unit within the booking                                                                                                                             |
| Voucher        | A single barcode that can be used for the entire booking                                                                                                            |
| Voucher Number | The booking reference number from your system supplied at the time of confirming a booking in the supplier system.  Described as the `resellerReference` on the API |
| Ticket         | A barcode that can be used per unit item                                                                                                                            |