How to say "kingdom" in Japanese
Choosing the right word
- 王国おうこくnounThe common word for a kingdom as a country or state ruled by a king or queen; it also covers 'monarchy', the royal institution or system of rule itself.
- nounA katakana loanword with essentially the same sense as 王国. It is less common, however, and seldom the word you need; for ordinary purposes 王国 is the choice to make.
- 界かいnoun, noun (suffix)Covers 'kingdom' in the biological classification sense — a major division of living things, as in the animal or plant kingdom. It is not the word for a royal kingdom; use 王国 there.
Choose 王国 for a kingdom as a country ruled by a king or queen, 界 for the biological classification sense; 「キングダム」 is a less common loanword that is rarely necessary.
Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only
Japanese equivalents
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