1.
kingdom; realm ruled by a king or queen
A country or state governed by a monarch (king or queen). Used in the official names of countries such as the United Kingdom.
2.
kingdom; realm; domain (figurative)
Used figuratively to describe a region or field dominated by a particular thing, or a place strongly associated with something.
王国 refers to a country ruled by a king or queen. It also has a common figurative use meaning a place or domain strongly associated with something.
Etymology
王 (king) + 国 (country).
Common collocations
Related words
Usage
The figurative sense is very productive in Japanese. Regions known for a product or specialty are often called 〜の王国, as in 静岡はお茶の王国 (Shizuoka is the kingdom of tea).
Related Words
Related:
皇帝 (emperor)
Related:
帝国 (empire)
Compare:
共和国 (republic)
Related:
国王 (king)
Related:
王様 (king)