primary taxonomic group. separating plants from animals.
Merriam-Webster Online Dictionary
kingdom (noun)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 capitalized
a) the eternal of God - kingship
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 below the domain