NAT
Sharing one public address between many devices, which is how commercial VPN servers put hundreds of users behind a single IP.
Glossary
A VPN address assigned to you alone rather than shared with other subscribers.
It stops you being blocked because of what other users on a shared address did, which matters for banking, business services and any site that treats shared VPN ranges as suspicious.
It is a privacy downgrade sold as an upgrade. A unique address that only you use is, by definition, an identifier, and the provider has to record that it is yours in order to assign it. Buy it for access, not for anonymity.
Terms are defined here because they appear in our scoring rubric or in provider reviews, not to fill a glossary.