[styren]

They are both pretty household terms that you could've easily Google.

[Incipient]

DD was guessed within context. But the others were niche acronyms that were critical to a very insightful comment - definitely worth explaining.

[dd82]

for you, maybe. but not me.

DD - disk destructor, double-down (a tire sidewall specification) SPA - single page application, specific purchase agreement, etc

and the list goes on.