Word
realm
US/ˈɹɛɫm/
UK/ɹˈɛlm/
Definitions
01area of interest or activity
B2 · Upper Intermediate Countable noun
n. a specific area of knowledge, interest, or activity.
n. a metaphorical sphere or domain of activity, thought, or knowledge.
日本語:領域※
Español:esfera
“The discovery was a major breakthrough in the realm of science.”
“Such theoretical questions fall outside the realm of practical politics and are better suited for academic debate.”
02a kingdom
C1 · Advanced Countable noun Literary · Formal
n. a country or territory ruled by a king or queen.
n. a community or territory over which a sovereign rules; a kingdom.
“The knights swore to protect the peace of the realm.”
“The monarch sought to expand the borders of the realm through a series of strategic alliances and marriages.”
03biological division
C2 · Proficiency Countable noun Science Technical
n. a very large area of the world where specific types of animals and plants live.
n. a primary biogeographic division of the Earth's surface, such as the Nearctic or Palearctic.
“Australia belongs to a unique biological realm with many animals found nowhere else.”
“Biogeographers divide the terrestrial world into several distinct realms based on the evolutionary history of the flora and fauna found therein.”
Synonyms
04virus classification
C2 · Proficiency Countable noun Science Technical
n. the highest level used to group different types of viruses.
n. the highest taxonomic rank used in the classification of viruses.
“Scientists placed the new virus into a specific realm based on its genetic structure.”
“In viral taxonomy, the rank of realm was established to accommodate the vast genetic diversity that exceeds the traditional kingdom level.”
Collocations
Common phrases and expressions where native English speakers use the word “realm” in context.
Noun
01. realm of
“Such advanced theoretical physics often feels like it belongs in the realm of science fiction.”
noun + of + noun
Real-World Examples
“It's especially relevant in the realm of artificial intelligence, where data center demand driven in part by AI workloads is straining power grids and creating new capacity bottlenecks.” “I’d spent so many years focusing on identifying sounds above ground, and now I had a portal into this earthy realm and a whole new acoustic space.” Etymology
From Middle English rewme, realme, reaume, from Old French reaume, realme, reialme (“kingdom”), of unclear origins. A postulated *rēgālimen (“domain, kingdom”), Late Latin or Vulgar Latin cross of regimen with rēgālis is usually cited. The modern spelling predominates from around 1600. The modern pronunciation with /l/ is either a spelling pronunciation or influenced by the etymology.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Domains
- 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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QR code
englishreference.com/q/realm
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「日本語」 data: JMdict (EDRDG), CC BY-SA 4.0
Traducciones: Kaikki.org (Wiktionary), CC BY-SA 4.0