kingdom

n.

1. 王国
   • After the old king died, his son ruled over the kingdom.
     老国王死后, 他儿子统治这个王国。
2. 界
   • This creature had the largest eyes in the whole animal kingdom.
     这种动物在整个动物界中眼睛最大。
3. 领域
   • This is the fight of the kingdom of the mind.
     这是思想领域的斗争。