[king.dom] n (bef. 12c) 1 archaic: kingship
2: a politically organized community or major territorial unit having a monarchical form of government headed by a king or queen 3 often cap a: the eternal kingship of God b: the realm in which God's will is fulfilled
4. a: a realm or region in which something is dominant b: an area or sphere in which one holds a preeminent position
5. a: one of the three primary divisions into which natural objects are commonly classified--compare animal kingdom, mineral kingdom, plant kingdom b: a major category (as Plantae or Protista) in biological taxonomy that ranks above the phylum and is the highest and most encompassing group