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 ISP Internet Service Provider MQTT Message Queue Telemetry Transport point-to-point networking NAS Network-Attached Storage PiHole Network-wide ad-blocker (DNS sinkhole) Plex Brand of media server package SSO Single Sign-On VPS Virtual Private Server (opposed to shared hosting) XMPP Extensible Messaging and Presence Protocol (‘Jabber’) for open instant messaging[Thread #64 for this comm, first seen 27th Jul 2026, 12:50] [FAQ] [Full list] [Contact] [Source code]