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. come into (or to) one's kingdom achieve recognition or supremacy. kingdom come sl. eternity; the next world. till kingdom come sl. for ever. kingdomed adj.
[ OE cyningdom (as KING) ]