# PCI Security Standards Council: glossary of terms, abbreviations, and acronyms

> Publisher glossary establishing the wording for cardholder data environment and segmentation. Cited so local scope vocabulary is settled against the publisher rather than invented on site. Checked September 15, 2026.

Canonical page: https://datacenterlabeling.com/references/s55

Original source: [PCI Security Standards Council: glossary of terms, abbreviations, and acronyms](https://www.pcisecuritystandards.org/glossary/)

## Scope of this source

Publisher glossary establishing the wording for cardholder data environment and segmentation. Cited so local scope vocabulary is settled against the publisher rather than invented on site. Checked September 15, 2026.

Provides publisher wording for scope vocabulary. No requirement is restated, and no requirement is asserted to be satisfied by labeling alone.

Rackstamp provides editorial field guidance. IDs, cases, and worksheet entries are fictional examples unless identified otherwise. Distinguish local conventions from adopted standards. Source notes describe the evidence scope; a linked overview is not the full standard or a project approval.

## Related guidance

- [Label the PCI DSS scope boundary so the room matches the diagram](https://datacenterlabeling.com/guides/labeling-for-pci-dss-scope)