The audiophile lexicon goes way, way back, at least to the early 1950s hi-fi craze. Here's a place to get a grip on it.
"For years, I have been on a personal crusade to put whatever effort I could into helping raise awareness of our industry," McGowan said. "I have spent hundreds (probably thousands) of hours answering questions about everything from how to connect a loudspeaker to how a transistor works, all in service to PS Audio customers and the high end."
It's all in the Audiophile Wiki: audio companies, designers, analog, digital, tubes, transistors, reviewers, speakers, amplifiers, turntables, etc. For example, if you're just getting into vinyl, check out the entry for Phono Cartridge:
"A phono cartridge is a device that reads the grooves on a phonograph record. There are multiple types of phono cartridges, moving magnet, moving coil, strain gauge, ceramic cartridge, and many others through the years.
All phono cartridges share in common the conversion of mechanical movement into either sound (mechanical cartridge) or electrical energy for later amplification.
The Audiophile Wiki launched in May of this year, so there's lots of gaps. Feel free to fill in missing facts.