English Reference

Word

clustering

Phoneticsclus·ter·ing, stress on the first syllable

US/ˈkɫəstɝɪŋ/

UK/klˈʌstəɹɪŋ/

Uncountable noun

Definition

n. the act of grouping similar things together. In computing, it refers to connecting several computers so they work as one powerful system or organizing data into related groups.

n. the process of grouping a set of objects or data points in such a way that those in the same group are more similar to each other than to those in other groups. In a hardware context, it involves linking multiple computers to act as a single system for high availability or load balancing.

Examples

“The software uses clustering to group similar customer profiles.”

“By implementing server clustering, the IT department ensured that the website remained online even if one machine failed.”

“Data scientists often apply unsupervised clustering algorithms to identify hidden patterns within large datasets before moving on to more specific predictive modeling phases.”

Examples

simple

“The software uses clustering to group similar customer profiles.”

contextual

“By implementing server clustering, the IT department ensured that the website remained online even if one machine failed.”

complex

“Data scientists often apply unsupervised clustering algorithms to identify hidden patterns within large datasets before moving on to more specific predictive modeling phases.”

Usage

Often functions as a gerund noun; frequently paired with 'algorithm' or 'server' in technical contexts.

Real-World Examples

“One possible solution is to use conventional clustering methods such as K-means, which group data points according to their proximity in feature space.”
Phys.org 2 Sept 2026
“Singers surround the audience, clustering in circles, moving down the aisles, forming and reforming into quartets, duets.”
The Guardian 10 Aug 2026

Word family

NOUN

clustering(C1)

Domain

Computing

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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