The term 'Lion Kingdom' refers to the Animalia kingdom, which is the scientific classification for animals. This kingdom includes all living creatures that are multicellular, have cells with a nucleus, and are capable of movement. It is the largest and most diverse kingdom in the world, containing millions of species of animals, from mammals to reptiles to insects. The lion is one of the most iconic animals in this kingdom, and is known for its strength, power, and majestic beauty.