Originally a Rebel Alliance term, Super Star Destroyer referred to any class of Imperial vessel larger than a Star Destroyer.
It’s the latter category we’re interested in today as we take a look at the class of ships known as Super Star Destroyers. The Empire was known for many things throughout its time–the absolute terror it inspired in those it subjugated, a lack of sharpshooting training among its rank and file troops, and of course, ships big enough to blot out the sky of whatever planet they happen to be bombarding from orbit. Sure, your cruisers might be able to repel its firepower, but the Super Star Destroyer is still one of the deadliest ships in Star Wars.