# The glossary is a contract with the page · Learn it in 5 minutes

- A glossary row in this lab is a term, a meaning, and the page that printed the meaning. Domain, skill group, campaign, and the rest already follow that rule. A new word with no page does not get a row.
- ACD is allowed because the Wikipedia article defines it. Skill group is allowed because the Five9 chapter defines it. A private acronym from a slide is not allowed until a public page says it.

## Sources and go deeper

- [Automatic call distributor](https://en.wikipedia.org/wiki/Automatic_call_distributor). wikipedia. last checked 2026-10.
- [Skill groups](https://documentation.five9.com/bundle/basic-admin/page/basic-admin/skill-groups/_ch-skill-groups.htm). vendor. last checked 2026-10.