A rank in the classification of organisms, below domain and above phylum; a taxon at that rank (e.g. the plant kingdom, the animal kingdom).
A realm, region, or conceptual space where something is dominant.
A realm having a king and/or queen as its actual or nominal sovereign.
A rank in the classification of organisms, below dominium and above divisio.
A badge of royalty, especially the early form of the pope's tiara.