Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| GSE | Ground Support Equipment |
| NOTAM | Notice to Air Missions of flight hazards |
| Jargon | Definition |
|---|---|
| scrub | Launch postponement for any reason (commonly GSE issues) |
[Thread #6 for this comm, first seen 29th Aug 2026, 16:45] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| EVA | Extra-Vehicular Activity |
| FAA | Federal Aviation Administration |
| GSE | Ground Support Equipment |
| HLS | Human Landing System (Artemis) |
| ILC | Initial Launch Capability |
| LC-39A | Launch Complex 39A, Kennedy (SpaceX F9/Heavy) |
| LOX | Liquid Oxygen |
| MECO | Main Engine Cut-Off |
| ~ | MainEngineCutOff podcast |
| NET | No Earlier Than |
| NOTAM | Notice to Air Missions of flight hazards |
| NSF | NasaSpaceFlight forum |
| ~ | National Science Foundation |
| SECO | Second-stage Engine Cut-Off |
| SLC-37 | Space Launch Complex 37, Canaveral (ULA Delta IV) |
| SPMT | Self-Propelled Mobile Transporter |
| ULA | United Launch Alliance (Lockheed/Boeing joint venture) |
| Jargon | Definition |
|---|---|
| Raptor | Methane-fueled rocket engine under development by SpaceX |
| Starlink | SpaceX’s world-wide satellite broadband constellation |
| cryogenic | Very low temperature fluid; materials that would be gaseous at room temperature/pressure |
| ~ | (In re: rocket fuel) Often synonymous with hydrolox |
| hydrolox | Portmanteau: liquid hydrogen fuel, liquid oxygen oxidizer |
| iron waffle | Compact “waffle-iron” aerodynamic control surface, acts as a wing without needing to be as large; also, “grid fin” |
| scrub | Launch postponement for any reason (commonly GSE issues) |
| turbopump | High-pressure turbine-driven propellant pump connected to a rocket combustion chamber; raises chamber pressure, and thrust |
[Thread #5 for this comm, first seen 7th Jul 2026, 05:55] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| FAA | Federal Aviation Administration |
| FCC | Federal Communications Commission |
| ~ | (Iron/steel) Face-Centered Cubic crystalline structure |
| HLS | Human Landing System (Artemis) |
| KSC | Kennedy Space Center, Florida |
| LC-39A | Launch Complex 39A, Kennedy (SpaceX F9/Heavy) |
| LOX | Liquid Oxygen |
| MECO | Main Engine Cut-Off |
| ~ | MainEngineCutOff podcast |
| NET | No Earlier Than |
| NSF | NasaSpaceFlight forum |
| ~ | National Science Foundation |
| RTLS | Return to Launch Site |
| SLC-37 | Space Launch Complex 37, Canaveral (ULA Delta IV) |
| SPMT | Self-Propelled Mobile Transporter |
| ULA | United Launch Alliance (Lockheed/Boeing joint venture) |
| Jargon | Definition |
|---|---|
| Raptor | Methane-fueled rocket engine under development by SpaceX |
| Starlink | SpaceX’s world-wide satellite broadband constellation |
| iron waffle | Compact “waffle-iron” aerodynamic control surface, acts as a wing without needing to be as large; also, “grid fin” |
[Thread #4 for this comm, first seen 15th Jun 2026, 06:35] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| Plex | Brand of media server package |
| RPi | Raspberry Pi brand of SBC |
| Jargon | Definition |
|---|---|
| Starlink | SpaceX’s world-wide satellite broadband constellation |
3 acronyms in this thread; the most compressed thread commented on today has 14 acronyms.
[Thread #3 for this comm, first seen 28th May 2026, 04:25] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| 301 | Cr-Ni stainless steel (X10CrNi18-8): high tensile strength, good ductility |
| FAA | Federal Aviation Administration |
| KSC | Kennedy Space Center, Florida |
| LC-39A | Launch Complex 39A, Kennedy (SpaceX F9/Heavy) |
| LOX | Liquid Oxygen |
| NET | No Earlier Than |
| NOTAM | Notice to Air Missions of flight hazards |
| NSF | NasaSpaceFlight forum |
| ~ | National Science Foundation |
| SECO | Second-stage Engine Cut-Off |
| SPMT | Self-Propelled Mobile Transporter |
| Jargon | Definition |
|---|---|
| Raptor | Methane-fueled rocket engine under development by SpaceX |
| Starlink | SpaceX’s world-wide satellite broadband constellation |
| iron waffle | Compact “waffle-iron” aerodynamic control surface, acts as a wing without needing to be as large; also, “grid fin” |
| perigee | Lowest point in an elliptical orbit around the Earth (when the orbiter is fastest) |
[Thread #2 for this comm, first seen 24th May 2026, 06:55] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| FTS | Flight Termination System |
| MECO | Main Engine Cut-Off |
| ~ | MainEngineCutOff podcast |
| NSF | NasaSpaceFlight forum |
| ~ | National Science Foundation |
| Jargon | Definition |
|---|---|
| Raptor | Methane-fueled rocket engine under development by SpaceX |
| Starlink | SpaceX’s world-wide satellite broadband constellation |
[Thread #1 for this comm, first seen 22nd May 2026, 22:35] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| FAA | Federal Aviation Administration |
| GSE | Ground Support Equipment |
| KSC | Kennedy Space Center, Florida |
| LC-39A | Launch Complex 39A, Kennedy (SpaceX F9/Heavy) |
| LOX | Liquid Oxygen |
| NET | No Earlier Than |
| NOTAM | Notice to Air Missions of flight hazards |
| NSF | NasaSpaceFlight forum |
| ~ | National Science Foundation |
| SLC-37 | Space Launch Complex 37, Canaveral (ULA Delta IV) |
| SPMT | Self-Propelled Mobile Transporter |
| TFR | Temporary Flight Restriction |
| ULA | United Launch Alliance (Lockheed/Boeing joint venture) |
| Jargon | Definition |
|---|---|
| Raptor | Methane-fueled rocket engine under development by SpaceX |
| iron waffle | Compact “waffle-iron” aerodynamic control surface, acts as a wing without needing to be as large; also, “grid fin” |
[Thread #0 for this comm, first seen 15th Mar 2026, 06:55] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 21:20] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 09:40] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 09:30] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 09:20] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 08:50] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 08:30] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 08:10] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| CGNAT | Carrier-Grade NAT |
| CST | (Boeing) Crew Space Transportation capsules |
| ~ | Central Standard Time (UTC-6) |
| DNS | Domain Name Service/System |
| HA | Home Assistant automation software |
| ~ | High Availability |
| IP | Internet Protocol |
| IoT | Internet of Things for device controllers |
| PCIe | Peripheral Component Interconnect Express |
| Roscosmos | State Corporation for Space Activities, Russia |
| SSD | Solid State Drive mass storage |
| VPS | Virtual Private Server (opposed to shared hosting) |
| Jargon | Definition |
|---|---|
| Starliner | Boeing commercial crew capsule CST-100 |
[Thread #55 for this comm, first seen 15th Jan 2026, 02:20] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| HTTP | Hypertext Transfer Protocol, the Web |
| IP | Internet Protocol |
| NAT | Network Address Translation |
| SSL | Secure Sockets Layer, for transparent encryption |
| TCP | Transmission Control Protocol, most often over IP |
| TLS | Transport Layer Security, supersedes SSL |
| UDP | User Datagram Protocol, for real-time communications |
| VPN | Virtual Private Network |
| VPS | Virtual Private Server (opposed to shared hosting) |
[Thread #981 for this sub, first seen 20th Sep 2024, 10:15] [FAQ] [Full list] [Contact] [Source code]
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 |
| HTTP | Hypertext Transfer Protocol, the Web |
| IP | Internet Protocol |
| NAT | Network Address Translation |
| SSL | Secure Sockets Layer, for transparent encryption |
| TLS | Transport Layer Security, supersedes SSL |
| VPN | Virtual Private Network |
| XMPP | Extensible Messaging and Presence Protocol (‘Jabber’) for open instant messaging |
| nginx | Popular HTTP server |
[Thread #980 for this sub, first seen 19th Sep 2024, 20:25] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| NAS | Network-Attached Storage |
| NUC | Next Unit of Computing brand of Intel small computers |
| RPi | Raspberry Pi brand of SBC |
| SATA | Serial AT Attachment interface for mass storage |
| SBC | Single-Board Computer |
4 acronyms in this thread; the most compressed thread commented on today has 8 acronyms.
[Thread #979 for this sub, first seen 18th Sep 2024, 08:45] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
| Fewer Letters | More Letters |
|---|---|
| AP | WiFi Access Point |
| ARP | Address Resolution Protocol, translates IPs to MAC addresses |
| DHCP | Dynamic Host Configuration Protocol, automates assignment of IPs when connecting to a network |
| IP | Internet Protocol |
| NAT | Network Address Translation |
5 acronyms in this thread; the most compressed thread commented on today has 5 acronyms.
[Thread #978 for this sub, first seen 18th Sep 2024, 08:15] [FAQ] [Full list] [Contact] [Source code]
Acronyms, initialisms, abbreviations, contractions, and other phrases which expand to something larger, that I’ve seen in this thread:
[Thread #7 for this comm, first seen 31st Aug 2026, 06:25] [FAQ] [Full list] [Contact] [Source code]