little world—
1. the limited close circle of one’s family and friends:
- I see a chap who is a sort of great white chief in his own little world.
2. a group of things considered as constituting a unity:
- The archipelago is a little world within itself, or rather a satellite attached to America.
small world —(also: it’s a small world) used as a comment on an unexpected meeting with a person:
- “Small world,” he said. “That bloke was in here yesterday.”
See also: great world, the / greater world, the.