kingdom

In general knowledge, a kingdom refers to a major category used in biological classification (taxonomy) to group living organisms. It is one of the highest ranks in the hierarchy, below domain and above phylum. Organisms within a kingdom share fundamental characteristics and can include animals, plants, fungi, and microorganisms. For example, the animal kingdom includes all animals, while the plant kingdom includes all types of plants. This classification helps scientists understand the relationships and evolutionary history of different life forms, facilitating study and communication across various fields of biology.