kingdom

American  

[king-duhm] / ˈkɪŋ dəm /

noun

• kingdoms
  plural

1. a state or government having a king or queen as its head.

2. anything conceived as constituting a realm or sphere of independent action or control.

   the kingdom of thought.

   Synonyms:

   domain, empire, dominion

3. a realm or province of nature, especially one of the three broad divisions of natural objects.

   the animal, vegetable, and mineral kingdoms.

4. Biology. a taxonomic category of the second highest rank, just below domain: in a traditional five-kingdom classification scheme, separate kingdoms are assigned to animals (Animalia), plants (Plantae), fungi (Fungi), protozoa and eukaryotic algae (Protista), and bacteria (Monera).

5. the spiritual sovereignty of God or Christ.

6. the domain over which the spiritual sovereignty of God or Christ extends, whether in heaven or on earth.

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kingdom British  

/ ˈkɪŋdəm /

noun

1. a territory, state, people, or community ruled or reigned over by a king or queen

2. any of the three groups into which natural objects may be divided: the animal, plant, and mineral kingdoms

3. biology any of the major categories into which living organisms of the domain Eukarya are classified. Modern systems recognize four kingdoms: Protoctista (algae, protozoans, etc), Fungi , Plantae , and Animalia See also domain

4. theol the eternal sovereignty of God

5. an area of activity, esp mental activity, considered as being the province of something specified

   the kingdom of the mind

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kingdom Scientific  

/ kĭng′dəm /

1. The highest classification into which living organisms are grouped in Linnean taxonomy, ranking above a phylum. One widely accepted system of classification divides life into five kingdoms: prokaryotes, protists, fungi, plants, and animals.

2. See Table at taxonomy

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kingdom Cultural  

1. In biology, the largest of the divisions of living things. The best-known kingdoms are those of the plants and animals. Modern biologists recognize three additional kingdoms: Monera (or Prokaryotae) (for example, bacteria and blue-green algae), Protoctista (for example, red algae, slime molds, and amoebas and other protozoa), and fungi. (See Linnean classification.)

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Synonym Usage

Kingdom, monarchy, realm refer to the state or domain ruled by a king or queen. A kingdom is a governmental unit ruled by a king or queen: the kingdom of Norway. A monarchy is primarily a form of government in which a single person is sovereign; it is also the type of power exercised by the monarch: This kingdom is not an absolute monarchy. A realm is the domain, including the subjects, over which the king has jurisdiction; figuratively, a sphere of power or influence: the laws of the realm.

Other Word Forms

Derived Forms

• underkingdom
  noun
• kingdomless
  adjective

Inflected Forms

Nouns

• kingdoms
  plural

Etymology

Origin of kingdom

First recorded before 1000; Middle English; Old English cyningdōm; see origin at king, -dom

Explanation

A kingdom is a territory or group of people ruled by the same monarch. You probably know the story of the prince who searched the kingdom to find the girl who left her glass slipper at the ball. A kingdom is a place — either literal or imagined — where someone or something reigns. A queen rules over her kingdom, which is land and the people who live on it, while a certain pop singer has a kingdom of young fans. In "the kingdom of the mind," creativity and imagination — not kings or queens — rule. In biology, a kingdom is a grouping of like organisms. For example, a dog is a member of the animal kingdom.

Example Sentences

See Examples For:

kingdom kingdoms

Washington maintains strong military and diplomatic ties with the kingdom.

From Barron's ● Sep. 11, 2026

It is not yet clear when the enthronement will take place, but the committee said it would be conducted in accordance with the traditions and customs of the Tooro kingdom.

From BBC ● Sep. 10, 2026

According to an energy ministry source quoted by the Saudi Press Agency, "several energy sector facilities and installations in the southern region of the kingdom were targeted this morning".

From Barron's ● Sep. 8, 2026

Although the phenomenon is common throughout the animal kingdom, scientists are still working to understand the biological processes underlying it and why it has persisted over evolutionary history.

From Science Daily ● Aug. 19, 2026

If he did, Ben had thought, Ben Meecham would waltz into the kingdom of God.

From "The Great Santini" by Pat Conroy

To reach the common ancestor shared by the plant and animal kingdoms, Anderson says researchers must look back to around 1.6 billion years ago.

From Science Daily ● Aug. 17, 2026

By the mid-700s, the author writes, only the kingdoms of Mercia, Northumbria, Wessex, East Anglia and Kent “functioned as largely autonomous units.”

From The Wall Street Journal ● May 21, 2026

Penda explains that from the 17th Century onwards, various ethnic groups told the legend of Luchele, a mystical, white-looking figure who helped their ancestors set up their kingdoms.

From BBC ● Apr. 24, 2026

Around 300 years before the events of “Game of Thrones,” the dragonlord led a campaign, with his sister-wives Visenya and Rhaenys, to conquer six of the seven kingdoms of Westeros.

From Los Angeles Times ● Mar. 3, 2026

Kings of little kingdoms fought together, and the young Sun shone like fire on the red metal of their new and greedy swords.

From "The Fellowship of the Ring" by J.R.R. Tolkien