Find acronyms, abbreviations, labels, terms, constants, words and references in 3GPP TS/TR/draft documents
This is an interesting tool to play with. 3GPPGuru 
Thanks to Esko Dijk
It’s a free online tool that quickly looks up the definitions of the many acronyms that are used in the 3GPP (LTE/4G, 5G, etc) standards. Keep this tool open in a window during a 5G webinar or meeting and you’ll look like a true … guru! https://3gpp.guru/