English Reference

Word

taxonomy

Phoneticstax·on·o·my, stress on the second syllable

US/ˌtækˈsɔnəˌmi/

UK/tæksˈɒnəmi/

Countable & uncountable

Definition

n. a system for naming and organizing things into groups based on how they are similar. It is often used in science to group animals and plants.

n. a scheme of classification, especially a hierarchical one, used for the systematic categorization of organisms or concepts. Often implies a formal or scientific framework.

Examples

“The library uses a complex taxonomy to organize its books.”

“Biologists are constantly updating the taxonomy of marine life as new genetic evidence comes to light.”

“The software developer created a custom taxonomy to tag and retrieve thousands of digital assets based on their resolution, format, and licensing status.”

Examples

simple

“The library uses a complex taxonomy to organize its books.”

contextual

“Biologists are constantly updating the taxonomy of marine life as new genetic evidence comes to light.”

complex

“The software developer created a custom taxonomy to tag and retrieve thousands of digital assets based on their resolution, format, and licensing status.”

Usage

Uncountable when referring to the science of classification; countable when referring to a specific system of categories.

Real-World Examples

“Rubin Observatory is expected to find many more stellar streams within our galaxy , which will help astronomers build a taxonomy of stream features and—hopefully—discover fingerprints of dark matter.”
Phys.org 27 Aug 2026
“They were engaged in what the French sociologist Roger Caillois, in his taxonomy Man, Play and Games (1958), called paidia : free, spontaneous, unstructured play.”
Aeon 1 Sept 2026

Etymology

Borrowed from French taxonomie. By surface analysis, taxo- + -nomy.

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

Word family

NOUN

taxonomy(C1)

ADJECTIVE

Related words

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
Occasional
Level
C1 · Advanced
Updated

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English Reference