English Reference

Word

kingdom

Phoneticsking·dom, stress on the first syllable

US/ˈkɪŋdəm/

UK/kˈɪŋdəm/

Definitions

01monarchical state

A2 · Elementary Countable noun

n. a country or territory that is ruled by a king or a queen.

n. a state or territory having a monarch as its head.

“The ancient kingdom was famous for its beautiful castles and brave knights.”

“The United Kingdom remains a constitutional monarchy where the sovereign's powers are largely ceremonial and defined by established legal conventions.”

Antonyms

02biological group

B2 · Upper Intermediate Countable noun Science Technical

n. one of the main groups that scientists use to classify living things, such as animals or plants.

n. a high-level taxonomic rank in biological classification, situated below domain and above phylum.

“Mushrooms belong to the fungi kingdom rather than the plant kingdom.”

“In modern biological taxonomy, the animal kingdom is distinguished from other groups by the multicellular nature and heterotrophic metabolism of its members.”

Synonyms

categorytaxon

03conceptual realm

C1 · Advanced Countable noun Literary

n. an area or field where a particular person, thing, or idea is the most important.

n. a realm, region, or conceptual space where a specific influence or entity is dominant.

“In the kingdom of the blind, the one-eyed man is king.”

“The poet's work explores the inner kingdom of the human mind, where dreams and memories hold more power than physical reality.”

Collocations

Common phrases and expressions where native English speakers use the word “kingdom” in context.

Verb

01. expand the kingdom

“The empire sought to expand the kingdom by conquering neighboring territories.”

verb + noun

02. overthrow the kingdom

“Rebel forces conspired to overthrow the kingdom and establish a republic.”

verb + noun

03. rule the kingdom

“The young monarch was determined to rule the kingdom with justice and compassion.”

verb + noun

Adjective

04. animal kingdom

“Biologists study the complex social structures found within the animal kingdom.”

adj + noun

05. celestial kingdom

“Many ancient myths describe the journey of the soul to a celestial kingdom.”

adj + noun

06. sovereign kingdom

“The treaty recognized the small island as a fully sovereign kingdom.”

adj + noun

Noun

07. defense of the kingdom

“The knights pledged their lives to the defense of the kingdom against invaders.”

noun + of + noun

08. keys to the kingdom

“Gaining access to the source code felt like being handed the keys to the kingdom.”

noun + prep + noun

Preposition

09. throughout the kingdom

“News of the prince's birth spread rapidly throughout the kingdom.”

prep + noun

Real-World Examples

“Scientists call these changes maternal age effects, and while they are widespread across the animal kingdom, researchers still don't fully understand how or why they occur.”
Phys.org 18 Aug 2026
“The findings therefore provide a broader framework for understanding genome regulation beyond the plant kingdom.”
Phys.org 17 Aug 2026

Etymology

From Middle English kingdom, kyngdom, from Old English cyningdōm from Proto-Germanic *kuningadōmaz, equivalent to king + -dom. Cognate with Scots kingdom, West Frisian keuningdom, Dutch koningdom, German Königtum, Danish kongedømme, Swedish kungadöme, and Icelandic konungdómur. Etymology tree Proto-Indo-European *ǵenh₁- Proto-Indo-European *-yós Proto-Germanic *kunją Proto-Indo-European *-n̥kʷo-der.? Proto-Indo-European *-nós Proto-Indo-European *-iHnos Proto-Germanic *-īnaz Proto-Indo-European *-kos Proto-Germanic *-gaz ? Proto-Germanic *-ingaz Proto-Germanic *kuningaz Proto-Indo-European *dʰeh₁- Proto-Indo-European *-mos Proto-Indo-European *dʰóh₁mos Proto-Germanic *dōmaz Proto-Germanic *-dōmaz Proto-Germanic *kuningadōmaz Proto-West Germanic *kuningadōm Old English cyningdōm Middle English kingdom English kingdom

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

Word family

NOUN

Related words

Idioms

This entry

Exam level
CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
Frequency
Common
Level
C1 · AdvancedOxford
Updated

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