ミニ国こっ家か

noun

microstate; ministate

Refers to a very small sovereign state, such as Vatican City or Monaco. Used in political and geographical contexts.

• バチカン市し国こくは世せ界かい最さい小しょうのミニ国こっ家かの一ひとつだ。

  Vatican City is one of the world's smallest microstates.