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

|Fewer Letters|More Letters| |-------|---------|---| |SLS|Space Launch System heavy-lift| |SRB|Solid Rocket Booster| |SSME|Space Shuttle Main Engine|

^(3 acronyms in this thread; )^(the most compressed thread commented on today)^( has 26 acronyms.)
^([Thread #8486 for this sub, first seen 27th Jan 2023, 04:21]) ^[FAQ] ^([Full list]) ^[Contact] ^([Source code])