Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:

Fewer Letters	More Letters
DNS	Domain Name Service/System
ESXi	VMWare virtual machine hypervisor
IP	Internet Protocol
LXC	Linux Containers
NAS	Network-Attached Storage
NVR	Network Video Recorder (generally for CCTV)
PiHole	Network-wide ad-blocker (DNS sinkhole)
Plex	Brand of media server package
SSD	Solid State Drive mass storage
Unifi	Ubiquiti WiFi hardware brand
VPN	Virtual Private Network
VPS	Virtual Private Server (opposed to shared hosting)

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