n.1 an organized community headed by a king.
2 the territory subject to a king.
3 a the spiritual reign attributed to God (Thy kingdom come). b the sphere of this (kingdom of heaven).
4 a domain belonging to a person, animal, etc.
5 a province of nature (the vegetable kingdom).
6 a specified mental or emotional province (kingdom of the heart; kingdom of fantasy).
7 Biol. the highest category in taxonomic classification.
Phrases and idioms:
come into (or to) one's kingdom achieve recognition or supremacy. kingdom come sl. eternity; the next world. till kingdom come sl. for ever.
Derivatives:
kingdomed adj.
Etymology: OE cyningdom (as KING)