---
title: "Glossary"
canonical: "https://docs.pbs.org/space/CB/327556158/Glossary"
format: markdown
---
| **Term** | **Definition** |
| --- | --- |
| Blank | A blank version of a List. Can be accessed by pressing the New Version button. |
| Copy | A copy of an existing version of a List. Can be accessed by pressing the New Version button. |
| Currently Published Version | A version of a List that is currently live. [Learn how to expire a List version](https://docs.pbs.org/space/CB/358645764/How+to+Expire+a+List+Version) |
| Display Description | A static description that can display on a List even as List content changes. |
| Display Name | A static title that can display on a List even as List content changes. Also serves as the title for the Show [Photo Gallery](https://docs.pbs.org/space/CB/327550125/Photo+Gallery) List. |
| Expire | An action that allows you to expire a Live version of a List. When expired, the version no longer displays online. |
| Expired Version | A version of a List that has been expired and no longer displays online. |
| Item | A single item in a List. Items can be a video or a short piece of text. |
| Lists | A programmable bundle of content made up of Items. Displays on various platforms and can be assigned as published, unpublished, or expired versions. |
| New Version | An action that allows you to copy an existing List or create a blank List and create a new version. |
| Screen | The various sections of a platform on which Lists display. |
| Schedule | A time-based building block used to determine the day and time your elements should surface on your site. Use the calendar to modify the date and time. |
| Unpublished Version | A version of a List that has been saved to the server and will go live at the selected date/time. |
| Version | The state of a List. Can be Published, Unpublished, or Expired. |
| Video | A video file. Video files are created in [Media Manager](https://docs.pbs.org/display/MM/Assets). |