pocketkingdom

noun
UK /ˈpɒkɪtˌkɪŋdəm/
US /ˈpɑːkɪtˌkɪŋdəm/

A tiny make-believe kingdom that fits in your pocket.

Leo built a pocketkingdom out of pebbles and a bottle cap.


OTHER MEANINGS

2. A small game world you can carry with you on a phone or handheld device.

She rules her pocketkingdom during the bus ride to school.

3. A private, cozy space that feels like your own little world.

His blanket fort became a pocketkingdom where no one could bother him.

4. A small group or club that acts like its own tiny nation.

The treehouse club was a pocketkingdom with its own secret rules.