A very large city block that is much bigger than regular city blocks.
Superblocks can make people think of modern city planning and big, open spaces in a city.
Examples:
The new neighborhood has a superblock with a park in the middle.
The superblock is so big, it takes a long time to walk around it.
The superblock has many buildings and roads.
I live on the superblock, not the regular block!
The superblock is so big, it takes a whole day to walk around it.
The superblock is like a city inside a city.