王国或者王朝用英语怎么说

kingdom
n.
1.王国[C]
2.【古】君主身份;王权[U]
3.【宗】(常大写)天国[C]
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realm
n.[C]
1.【书】王国;国土,领土
The king sought to expand his realm.
国王谋求扩大领土.