Now that I think about it, Star Destroyer was also used in ESB – in the asteroid field, after Han turns towards the Star Destroyer, C-3PO says something like “the odds of surviving a direct attack on a Star Destroyer are 3720 to 1!”
That 3720 number is from memory – if I’m right, then I’m awesome (or sad, depending on your POV).
EDIT: I’m half-right – Han cuts off 3PO with “never tell me the odds” in that instance, but earlier 3PO says that the odds of surviving an asteroid field are 3720 to 1.
Admiral Ackbar says something like “concentrate all fire power on that super star destroyer” so at least the big one is mentioned by name. Just before the most disappointing explosion in movie history.
[QUOTE=RickJay]
I am pretty sure that the only vessels in “Star Wars” that are called by the names we know them in that movie are the Millennium Falcon and the Death Star.
[/QUOTE]
Because they are destroyer-class warships (as in larger than a corvette or frigate but smaller than a cruiser or battleship) that travel the stars. Not because they destroy them.
Although FWIW, Imperial star destroyers are larger than Rebel cruisers.
There’s seems to be some debate whether “super star destroyer” is an actual class of ship, or if it’s just a colloquialism for a large Imperial command ship.